May 2017 Quarterly Report

The Iowa DNA Project, formed in November 2014 has now reached 1071 members.  Categorized as ‘geographical’, the project is designed for those who have direct ancestors who lived in Iowa, or those researching collateral lines that lived in Iowa. Our focus is on those who have taken autosomal, aka  Family Finder  tests.     However,  we also have numerous members enthusiastically investigating their mtDNA and YDNA origins.

Those new to DNA testing are especially welcome and their research aims are supported and encouraged  within the project.  If you have tested with another company, you may wish to transfer your results to FTDNA and join us.  Instructions are available here.

Key Figures

  • Total Iowa DNA Project Members: 1071
  • Family Finder Tests Completed: 930
  • Average number of database wide matches per member:  1244
  • Weekly New Member Inter-Project Match Updates
  • All Iowa Counties Researched and Represented

Nuts and Bolts

The Iowa DNA Project Surname Index can be found here.  Surnames associated with specific counties can be found in our FAQ here.  Current members, if you’ve not already uploaded a gedcom and entered your surname and most distance ancestor details, you are strongly encouraged to do so!  You can get detailed instructions on how to complete your profile here.

As you can see from the figures below, members have worked diligently to  complete their profiles, thus increasing their odds of making the connection that will break down a brick wall.

  • Total Iowa Surnames: 1276
  • Members with Family Trees: 727
  • Members with listed Surnames:  850
  • Members with listed Most Distant Ancestors: 756

Iowan Family Groups

The long term goal of the Iowa DNA Project is the inclusion of multiple generations and extended family members who have taken the Family Finder test.  These family groups assist in helping inter-project matches determine how they may be connected and which branch of their family trees to examine further.  We have teamed up with Göran Runfeld of dnagen.net  to trial his ICW Tool to map out the inter-connectedness of the entire Iowa DNA project.   Below is the ‘Atlas’ or a graphical depiction of the current connections between our members.

Match Atlas

Inter-Connectedness Atlas

Using the ICW Tool gives Iowa DNA Project members easy access to a variety of additional information and charts including a tabulation of our members’ Suggested Relationships.  As you can see, our members are actively recruiting close family members to test.

Suggested Relationships

  • Parent/Child: 240
  • Full Siblings: 200
  • 1st Cousin: 70
  • 2nd Cousin: 280
  • 3rd Cousin: 450
  • 4th Cousin: 1160

More can be learned about the process and results here*.

*Detailed information, filters and charts are available to Iowa DNA Project members.  Current members, if you would like to find your kit(s) in the Atlas , choose ‘KIT’ from the ‘FILTER’ drop down button on the left and enter your kit number(s).

Haplogroups

Project YDNAAs expected, the most common Y haplogroup remains R and its subclades, with I and its subclades the second most common.  To date,  58 project members have completed the Big Y test and 119 have completed the Y-DNA111.  If you are interested in getting closer to your terminal SNP but are put off by the price tag of the Big Y, there are numerous reasonably priced SNP packs available to help get you further down the phylotree*.

As you can see from the results below, members have taken advantage of the recent sales and discounts to get closer to their terminal SNPs, particularly those who had been languishing in the R-M269 subclade.

Member YDNA Haplogroups:

  • R-M269: 159
  • R (excluding R-M269): 104
  • I: 72
  • E: 13
  • J: 10
  • G: 9
  • N: 3
  • Q: 2
  • B: 1
  • C: 1
  • T: 1

More information on the project’s patriarchs and YDNA results can be found here.

*If you are unsure, check with your Haplogroup’s administrator for guidance on which SNP pack is suitable for you.

Project mtDNA:  

The most common mtDNA continues to be H and its subclades with a variety of other haplogroups also represented.  The representation of haplogroups by project members has remained stable since the previous quarterly.  Currently, 303 project members have completed Full Mitochondrial Sequencing.

Member  mtDNA Haplogroups:

  • H: 162
  • U: 46
  • T: 42
  • K: 37
  • J: 34
  • W:  11
  • V: 9
  • I: 9
  • HV: 4
  • L: 3
  • X: 3
  • A: 2
  • B: 2
  • N: 2
  • HVO:2
  • C: 1
  • RO: 1

Complete information on our project’s mtDNA matriarchs, statistics and mutations can be found here.

Declared Countries of YDNA and mtDNA Origin

YDNA Origins

mtDNA Origins

MyOrigins Leaderboard

 On April 7, myOrigins was updated to myOrigins 2.0.  Per the release notes, “Seeing your results change does not mean that they were incorrect before, but rather, that with more research and the addition of more reference populations we are able to paint a clearer picture of your genetic tapestry. As our database grows, we are able to gain a better understanding of the unique genetic variation for each of our reference populations and even add new reference populations to our existing regions. We will also share these advances with you and continue to refine your results.”  As a result of the changes, lively discussions have sprung up at the official FTDNA forum.

Based on percentage points per member, the current Iowa DNA Project populations are listed below in order of frequency.  Descriptions of each population cluster can be found here.

  • British Isles 36,976
  • West and Central Europe 19,462
  • Scandinavia 9678
  • East Europe 4738
  • Southeast Europe 3892
  • Iberia 1286
  • West Africa 507
  • Asia Minor 443
  • Finland 290
  • North and Central America 266
  • Ashkenazi 230
  • Sephardic 215
  • West Middle East 143
  • South America 109
  • Northeast Asia 73
  • East Middle East 32
  • East Central Africa 23
  • Central Asia 19
  • South Central Africa 11
  • North Africa 11
  • South Central Asia 5
  • Siberia 2

With the newest version of myOrigins, population trace amounts are also available in the ethnicity report.

  • Sephardic 23 members
  • Ashkenazi 48 members
  • North and Central America 79 members
  • South America 87 members
  • British Isles: 7 members
  • Scandinavia 24 members
  • Finland 130 members
  • West and Central Europe 6 members
  • Southeast Europe 85 members
  • East Europe 104 members
  • Iberia 23 members
  • West Middle East 60 members
  • East Middle East 47 members
  • Asia Minor 63 members
  • North Africa 45 members
  • East Central Africa 28 members
  • South Central Africa 53 members
  • West Africa 44 members
  • Central Asia 53 members
  • South Central Asia 37 members
  • Siberia 31 members
  • Northeast Asia 17 members
  • Southeast Asia 16 members
  • Oceania 101 members

As the results have been tracked since the inception of the project, it is possible to compare the current results above to the results of the previous version of myOrigins.

  • British Isles 45,621
  • Western and Central Europe 27,325
  • Scandinavia 26,446
  • Southern Europe 7,687
  • Eastern Europe 5,382
  • Finland and Northern Siberia 874
  • Asia Minor 772
  • West Africa 398
  • Ashkenazi Diaspora 300
  • Eastern Middle East 287
  • Native American 237
  • Central Asia 233
  • Northeast Asia 143
  •  (Blended Population Cluster) Eastern, Western and Central European 100
  • ECW Euro 100
  • North Africa 87
  • East Central Africa 16
  • South-Central Africa 9

100% Club:

Previously, the Iowa DNA project had 19 members returning a 100% result of a single population cluster.  Following the update, two members of our total 1071 have returned a 100% result (British Isles and Eastern Europe).

Ancient Origins

FTDNA has added the Ancient Origins calculator to its list of offerings, and describes it as, “The European Continent has been witness to many episodes of human migration, some of which have spanned over thousands of years. The most up-to-date research into these ancient migrations on the European Continent suggests that there were three major groups of people that have had a lasting effect on present day peoples of European descent: Hunter-Gatherers, Early Farmers, and Metal Age Invaders.”  Now, those who have taken the Family Finder test can also learn more about their deep origins.

In general, across the board project members are returning roughly equal proportions of Hunter Gatherer and Early Farmers, with additional 10-15% Metal Age Invader ancestry.  Detailed information on the calculator and how to use this new tool can be found here .

Ancient Origins Leaderboard

  • Hunter Gatherers  35,722
  • Early Farmers 34,209
  • Metal Age Invaders 9872
  • Non-European 930

Coming Results:

The FTDNA lab is currently waiting for the following test kits to be returned:1 Family Finder, 6 mtDNA Full Sequence, 1 Big Y, 2 YDNA 111 and 1 Factoid.

From the FTDNA lab, project members are waiting for the following results:   7 mtFull Sequence,  1 mtDNA Plus, 1 YDNA 37,   2 YDNA 67 (1 delayed),  4 YDNA 111 (1 delayed),  3 Big Y,  1 Y Haplogroup Backbone (delayed),  7 SNP Pack (2 delayed),  2 individual SNPs and  4 Family Finders.

Current members, please keep in mind you cannot be checked for inter-project matches without a completed Family Finder test. 

Do You have Iowan Roots?

If you have Iowan roots, you are very welcome to join and encouraged to collaborate, share your family’s history, and find connections with your fellow Iowans.

You can read more about the benefits of joining a project at FTDNA here .  If you would like to join the Iowa DNA Project, please visit our homepage here.  The project has converted to MyGroups and has activated its Activity Feed to encourage collaboration. The Feed may be accessed after joining and of course our links section, which contains tutorials for FTDNA users and case studies,  is available to all.

 

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February 2017 Quarterly Report

The Iowa DNA Project, formed in November 2014 has now reached 901 members.  Categorized as ‘geographical’, the project is designed for those who have direct ancestors who lived in Iowa, or those researching collateral lines that lived in Iowa. Our focus is on those who have taken autosomal, aka  Family Finder  tests.     However,  we also have numerous members enthusiastically investigating their mtDNA and YDNA origins.

Those new to DNA testing are especially welcome and their research aims are supported and encouraged  within the project.  If you have tested with another company, you may wish to transfer your results to FTDNA and join us.  Instructions are available here.

Key Figures

  • Total Iowa DNA Project Members: 901
  • Family Finder Tests Completed: 800
  • Average number of database wide matches per member:  1411
  • Weekly New Member Inter-Project Match Updates
  • All Iowa Counties Researched and Represented

Nuts and Bolts

The Iowa DNA Project Surname Index can be found here.  Surnames associated with specific counties can be found in our FAQ here.  Current members, if you’ve not already uploaded a gedcom and entered your surname and most distance ancestor details, you are strongly encouraged to do so!  You can get detailed instructions on how to complete your profile here.

As you can see from the figures below, most members have completed their profiles, thus increasing their odds of making the connection that will break down a brick wall.

  • Total Iowa Surnames: 1155
  • Members with Family Trees: 644
  • Members with listed Surnames:  772
  • Members with listed Most Distant Ancestors: 689

Iowan Family Groups

The long term goal of the Iowa DNA Project is the inclusion of multiple generations and extended family members who have taken the Family Finder test.  These family groups assist in helping inter-project matches determine how they may be connected and which branch of their family trees to examine further.  We have teamed up with Göran Runfeld of dnagen.net  to trial his ICW Tool to map out the inter-connectedness of the entire Iowa DNA project.   Below is the ‘Atlas’ or a graphical depiction of the current connections between our members.

Project Interconnectedness.png

Using the ICW Tool gives Iowa DNA Project members easy access to a variety of additional information and charts including a tabulation of our members’ Suggested Relationships.  As you can see, our members are actively recruiting close family members to test.

Suggested Relationships

  • Parent/Child: 184
  • Full Siblings: 152
  • 1st Cousin: 56
  • 2nd Cousin: 224
  • 3rd Cousin: 264
  • 4th Cousin: 768

More can be learned about the process and results here*.

*Detailed information, filters and charts are available to Iowa DNA Project members.  Current members, if you would like to find your kit(s) in the Atlas , choose ‘KIT’ from the ‘FILTER’ drop down button on the left and enter your kit number(s).

Haplogroups

Project YDNAAs expected, the most common Y haplogroup remains R and its subclades, with I and its subclades the second most common.  To date,  51 project members have completed the Big Y test and 119 have completed the Y-DNA111.  If you are interested in getting closer to your terminal SNP but are put off by the price tag of the Big Y, there are numerous reasonably priced SNP packs available to help get you further down the phylotree*.  As you can see from the results below, members have taken advantage of the recent sales and discounts to get closer to their terminal SNPs, particularly those who had been languishing in the R-M269 subclade.

Member YDNA Haplogroups

  • R-M269: 137
  • R (excluding R-M269): 93
  • I: 62
  • E: 10
  • G: 9
  • J: 7
  • N: 3
  • B: 1
  • C: 1
  • Q: 1
  • T: 1

More information on the project’s patriarchs and YDNA results can be found here.

*If you are unsure, check with your Haplogroup’s administrator for guidance on which SNP pack is suitable for you.

Project mtDNA:  

 The most common mtDNA continues to be H and its subclades with a variety of other haplogroups also represented.  The representation of haplogroups by project members has remained stable since the previous quarterly.  Currently, 257 project members have completed Full Mitochondrial Sequencing.

Member  mtDNA Haplogroups:

  • H: 134
  • U: 44
  • T: 38
  • K: 37
  • J: 29
  • W:  11
  • V: 8
  • I: 8
  • L: 3
  • HV: 3
  • X: 2
  • A: 2
  • B: 2
  • N: 2
  • HVO:2
  • C: 1
  • RO: 1

Complete information on our project’s mtDNA matriarchs, statistics and mutations can be found here.

Declared Countries of YDNA and mtDNA Origin

ydna-declared-counry-of-origin

MyOrigins Leaderboard

Based on percentage points per member, the Iowa DNA Project populations are listed below in order of frequency.  Descriptions of each population cluster can be found here.  Additional admixture tools can be found at Gedmatch.

On the whole, as our numbers have risen since November 2016, the populations seen in the project have remained at generally consistent proportions.

  • British Isles 45,621
  • Western and Central Europe 27,325
  • Scandinavia 26,446
  • Southern Europe 7,687
  • Eastern Europe 5,382
  • Finland and Northern Siberia 874
  • Asia Minor 772
  • West Africa 398
  • Ashkenazi Diaspora 300
  • Eastern Middle East 287
  • Native American 237
  • Central Asia 233
  • Northeast Asia 143
  •  (Blended Population Cluster) Eastern, Western and Central European 100
  • ECW Euro 100
  • North Africa 87
  • East Central Africa 16
  • South-Central Africa 9

100% Club:

  • 100% British Isles 9 members
  • 100% Western and Central Europe 6 members
  • 100% Scandinavian 2 members
  • 100% Eastern, Western and Central European 1 member
  • 100% Scandinavian, Western Central European 1 member

Ancient Origins

FTDNA has added the Ancient Origins calculator to its list of offerings, and describes it as, “The European Continent has been witness to many episodes of human migration, some of which have spanned over thousands of years. The most up-to-date research into these ancient migrations on the European Continent suggests that there were three major groups of people that have had a lasting effect on present day peoples of European descent: Hunter-Gatherers, Early Farmers, and Metal Age Invaders.”  Now, those who have taken the Family Finder test can also learn more about their deep origins.

In general, across the board project members are returning roughly equal proportions of Hunter Gatherer and Early Farmers, with additional 10-15% Metal Age Invader ancestry.  Detailed information on the calculator and how to use this new tool can be found here .

Ancient Origins Leaderboard

  • Hunter Gatherers  30,148
  • Early Farmers 28,840
  • Metal Age Invaders 9639
  • Non-European 780

Coming Results:

Following the recent seasonal sales, the FTDNA lab is currently waiting for the following test kits to be returned:1 Family Finder, 4 mtDNA Full Sequence,  and 1 Factoid.

From the FTDNA lab, project members are waiting for the following results:  6 mtFull Sequence (1 delayed), 1 mtDNA Plus (delayed),  3 YDNA 67,  2 YDNA 111 (1 delayed),  3 Y Haplogroup Backbone (2 delayed),  1 SNP Pack (delayed),  3 individual SNPs (1 delayed) and  2 Family Finders (1 delayed).

Current members, please keep in mind you cannot be checked for inter-project matches without a completed and unlocked Family Finder test. 

Do You have Iowan Roots?

If you have Iowan roots, you are very welcome to join and encouraged to collaborate, share your family’s history, and find connections with your fellow Iowans.

You can read more about the benefits of joining a project at FTDNA here .  If you would like to join the Iowa DNA Project, please visit our homepage here.  The project has converted to MyGroups and has activated its Activity Feed to encourage collaboration. The Feed may be accessed after joining and of course our links section, which contains tutorials for FTDNA users and case studies,  is available to all.

 

 

November 2016 Quarterly Report

The Iowa DNA Project was formed in November 2014 and on its second anniversary, has now reached 804 members.  The project is categorized as ‘geographical’, and is designed for those who have direct ancestors who lived in Iowa, or those researching collateral lines that lived in Iowa. Our focus is on autosomal, aka Family Finder results, but we also have numerous members actively investigating their mtDNA and YDNA origins.

Those new to DNA testing are especially welcome and their research aims are supported and encouraged  within the project.  If you have tested with another company, you may wish to transfer your results to FTDNA and join us.  Instructions are available here.

Key Figures

  • Total Iowa DNA Project Members: 804
  • Family Finder Tests Completed: 700
  • Average number of database wide matches per member:  1469
  • Weekly New Member Inter-Project Match Updates
  • All Iowa Counties Represented

Nuts and Bolts

The Iowa DNA Project Surname Index can be found here.  Surnames associated with specific counties can be found in our FAQ here.  Current members, if you’ve not already uploaded a gedcom and entered your surname and most distance ancestor details, you are strongly encouraged to do so. You can get detailed instructions on how to complete your profile here.

  • Total Iowa Surnames: 1056
  • Members with Family Trees: 579
  • Members with listed Surnames:  704
  • Members with listed Most Distant Ancestors: 624

Iowan Family Groups

The long term goal of the Iowa DNA Project is the inclusion of multiple generations and extended family members who have taken the Family Finder test.  These family groups assist in helping inter-project matches determine how they may be connected and which branch of their family trees to examine further.  We have teamed up with Göran Runfeld of dnagen.net  to trial his ICW Tool to map out the inter-connectedness of the entire Iowa DNA project.   Below is a graphical depiction of the current connections between our members.

membership-relations

Using the ICW Tool gives Iowa DNA Project members easy access to a variety of additional information and charts including a tabulation of our members’ Suggested Relationships.  As you can see, our members are actively recruiting close family members to test.

Suggested Relationships

  • Parent/Child: 168
  • Full Siblings: 154
  • 1st Cousin: 56
  • 2nd Cousin: 224
  • 3rd Cousin: 203
  • 4th Cousin: 546

More can be learned about the process and results here*.

*Detailed information is available to Iowa DNA Project members

Haplogroups

Project YDNAAs expected, the most common Y haplogroup is R and its subclades, with I and its subclades the second most common.  To date,  44 project members have completed the Big Y test.  If you are interested in getting closer to your terminal SNP but aren’t interested in the price tag of the Big Y, there are numerous reasonably priced SNP packs available to help get you further down the phylotree*.  Given the current seasonal sales and discounts, there is no better time to push your research forward.

Member YDNA Haplogroups

  • R-M269: 126
  • R (excluding R-M269): 73
  • I: 58
  • E: 9
  • G: 8
  • J: 5
  • N: 3
  • B: 1
  • C: 1
  • Q: 1
  • T: 1

More information on the project’s patriarchs and YDNA results can be found here.

*If you are unsure, check with your Haplogroup’s administrator for guidance on which SNP pack is suitable for you.

Project mtDNA:  The most common mtDNA continues to be H and its subclades with a variety of other haplogroups also represented.  In comparing the current haplogroup breakdown to the previous report, it is clear that with additional members testing, there has been a major reshuffling of the represented mtDNA.  Currenly, 221 project members have completed Full Mitochondrial Sequencing.

Member  mtDNA Haplogroups:

  • H: 120
  • U: 41
  • T: 33
  • K: 31
  • J: 25
  • W:  10
  • V: 8
  • I: 7
  • L: 3
  • X: 2
  • A: 2
  • B: 2
  • HV: 2
  • RO: 1
  • N: 1
  • HVO:1
  • C: 1

Complete information on our project’s mtDNA matriarchs, statistics and mutations can be found here.

Declared Countries of YDNA and mtDNA Origin

y-country-of-origin

mtdna-country-of-origin

MyOrigins Leaderboard

Based on percentage points per member, the Iowa DNA Project populations are listed below in order of frequency.  Descriptions of each population cluster can be found here.  Additional admixture tools can be found at Gedmatch.

On the whole, as our numbers have risen since last August, the populations seen in the project have remained at generally consistent levels with two exceptions.  Members with Western and Central European have seen a slight increase over those with Scandinavian ancestry .  Members with Native American and Northeast Asian ancestry have continued to rise.

  • British Isles 42,937
  • Western and Central Europe 25,642
  • Scandinavia 25,151
  • Southern Europe 7,345
  • Eastern Europe 5,128
  • Finland and Northern Siberia 804
  • Asia Minor 723
  • West Africa 397
  • Ashkenazi Diaspora 285
  • Eastern Middle East 284
  • Native American 236
  • Central Asia 225
  • Northeast Asia 143
  •  (Blended Population Cluster) Eastern, Western and Central European 100
  • ECW Euro 100
  • North Africa 83
  • East Central Africa 16
  • South-Central Africa 9

100% Club:

  • 100% British Isles 8 members
  • 100% Western and Central Europe 3 members
  • 100% Scandinavian 2 members
  • 100% Eastern, Western and Central European 1 member
  • 100% Scandinavian, Western Central European 1 member

Ancient Origins

FTDNA has added the Ancient Origins calculator to its list of offerings, and describes it as, “The European Continent has been witness to many episodes of human migration, some of which have spanned over thousands of years. The most up-to-date research into these ancient migrations on the European Continent suggests that there were three major groups of people that have had a lasting effect on present day peoples of European descent: Hunter-Gatherers, Early Farmers, and Metal Age Invaders.”  Now, those who have taken the Family Finder test can learn more about their deep origins.

In general, across the board project members are returning roughly equal proportions of Hunter Gatherer and Early Farmers, with additional 10-15% Metal Age Invader ancestry.  Detailed information on the calculator and how to use this new tool can be found here .

Ancient Origins Leaderboard

  • Hunter Gatherers  27,247
  • Early Farmers 26,036
  • Metal Age Invaders 8857
  • Non-European 780

Coming Results:

With the current fantastic seasonal sales and existing member bonus discounts FTDNA members are enjoying, we have a slew of kits on order and waiting to be processed.  Currently, orders expected by the lab are: 1 Family Finder, 1 YDNA 25 Marker, 1 YDNA 67 Marker, 1 YDNA 111 Marker, 6 mtDNA Full Sequence, 1 Factoid and 1 SNP test.   Current members, please keep in mind you cannot be checked for inter-project matches without a completed and unlocked Family Finder test.

From the FTDNA lab, we are waiting for the following results:  2 mtFull Sequence, 2 mtDNA Plus, 4 Big Y, 1 YDNA 67, 3 YDNA 111, 3 Y Haplogroup Backbone (3 delayed), 5 SNP Packs, 1  individual SNPS and 2 Family Finders.

Do You have Iowan Roots?

If you have Iowan roots, you are very welcome to join and encouraged to collaborate, share your family’s history, and find connections with your fellow Iowans.

You can read more about the benefits of joining a project at FTDNA here .  If you would like to join the Iowa DNA Project, please visit our homepage here.  The project has converted to MyGroups and has activated its Activity Feed to encourage collaboration. The Feed may be accessed after joining and of course our links section, which contains tutorials for FTDNA users and case studies,  is available to all.

 

 

August 2016 Quarterly Report

The Iowa DNA Project was formed in November 2014 and has now reached 713 members.  The project is categorized as ‘geographical’, and is designed for those who have direct ancestry in Iowa, as well as those researching collateral lines that lived in Iowa. Our focus is on autosomal, aka Family Finder results, but we also have many members testing and actively researching their mtDNA and YDNA origins.

Those new to DNA testing are especially welcome and their research aims are supported and encouraged  within the project.  If you have tested with another company, you may wish to transfer your results to FTDNA and join us.  Instructions on how to transfer your raw results are available here.

Key Figures

  • Total Iowa DNA Project Members: 713
  • Family Finder Tests Completed: 577
  • Average number of database wide matches per member: 26
  • Highest number of Inter-Project matches per member: 853
  • Weekly Inter-Project Match Updates
  • All Iowa Counties Represented

Nuts and Bolts

The Iowa DNA Project Surname Index can be found here.  Surnames associated with specific counties can be found in our FAQ here.  Current members, if you’ve not already uploaded a gedcom and entered your Surname and Most Distant Ancestor details, you are strongly encouraged to do so. You can get detailed instructions on how to complete your profile here.

  • Total Iowa Surnames: 989
  • Members with Family Trees: 461
  • Members with listed Surnames:  553
  • Members with listed Most Distant Ancestors: 487

Iowan Family Groups

The long term goal of the Iowa DNA Project is the inclusion of multiple generations and extended family members who have taken the Family Finder test.  These family groups assist in helping inter-project matches determine how they may be connected and which branch of their family trees to examine further to prove their connections.  In October 2015, we teamed up with Göran Runfeld of dnagen.net  to trial his ICW Tool and to map out the interconnectedness of the entire Iowa DNA project.   Below is a depiction of the current extended connections between our members.

Nodes

Using the ICW Tool gives Iowa DNA Project members easy access to a variety of additional information and charts including a tabulation of our members’ Suggested Relationships.  As you can see, Iowa DNA Project members are actively recruiting close family to test.

Suggested Relationships

  • Parent/Child: 125
  • Full Siblings: 89
  • Grandparent/Grandchild/Half Siblings: 34
  • Aunt/Uncle/Niece/Nephew: 40
  • 1st Cousin: 67
  • 2nd Cousin: 108
  • 3rd Cousin: 154
  • 4th Cousin: 391

Match Count

More can be learned about the ICW Tool’s process and results here.   Detailed information and full access to charts and figures is available to project members.

Haplogroups

Project YDNAAs expected, the most common Y haplogroup is R and its subclades, with I and its subclades being the second most common.  To date,   38 project members have completed the Big Y test.  If you are interested in getting closer to your terminal SNP but aren’t thrilled about the price tag of the Big Y, there are reasonably priced SNP packs available to help get you further down the phylotree*.

  • R-M269: 108
  • R (excluding R-M269): 66
  • I: 55
  • E: 8
  • G: 7
  • J: 4
  • N: 3
  • B: 1
  • C: 1
  • T: 1

More information on the project’s patriarchs and YDNA results can be found here.

*If you are unsure, check with your Haplogroup’s administrator for advice on which, if any SNP pack is suitable for you.

Project mtDNA:  The most common mtDNA continues to be H and its subclades with a variety of other haplogroups also represented.   196 project members have completed Full Mitochondrial Sequencing.

Member Haplogroups:

  • H: 106
  • U: 34
  • K: 30
  • T: 28
  • J: 21
  • W: 8
  • V: 7
  • I: 7
  • L: 3
  • B: 2
  • HV: 2
  • HVO:2
  • X: 2
  • C: 1
  • A: 1
  • RO: 1
  • N: 1

Complete information on our project’s mtDNA matriarchs, statistics and mutations can be found here.

Declared Countries of YDNA and mtDNA Origin

YDNA Countries of Origin

mtDNA Countries of Origin

MyOrigins Leaderboard

Based on percentage points per member, the Iowa DNA Project populations are listed below in order of frequency.  Descriptions of each population cluster can be found here. For the calculator junkies, additional admixture tools can be found at Gedmatch.

On the whole, as our numbers have risen, the populations seen in the project have remained at generally consistent levels. In the last 3 months, project members with calculated Western and Central European ancestry have risen slightly to surpass those with calculated Scandinavian origins.

  • British Isles 40,519
  • Western and Central Europe 24,018
  • Scandinavia 23,790
  • Southern Europe 6811
  • Eastern Europe 4758
  • Finland and Northern Siberia 744
  • Asia Minor 656
  • West Africa 393
  • Ashkenazi Diaspora 285
  • Eastern Middle East 265
  • Native American 233
  • Central Asia 169
  • Northeast Asia 143
  • (Blended Population Cluster) Eastern, Western and Central European 100
  • Scandinavian Western Central and Eastern European 100
  • North Africa 76
  • East Central Africa 16
  • South-Central Africa 9

100% Club:

  • 100% British Isles 8 members
  • 100% Western and Central Europe 3 members
  • 100% Scandinavian 2 member
  • 100% Eastern, Western and Central European 1 member
  • 100% Scandinavian, Western and Central European 1 member

Coming Results:

Currently, we are waiting for a few samples to be returned to the lab for testing: 1 R1b – DF27 SNP Pack, 1 Factoid, and 2 mtDNA Full Sequence.

From the FTDNA lab, we are waiting for the results of several tests:   1 YDNA 37 Marker,  1 YDNA 67 Marker, 1 YDNA 111 Marker (delayed),  3  Y-Hap-Backbone (3 delayed),  1 SNP Pack (delayed),  2 single SNPs (1 delayed),  5 mtDNA Full Sequence (2 delayed), 11 Factoids (11 delayed), 2 mtDNA Plus (2 delayed), and 3 Family Finders (1 delayed).  We have members who are predominantly interested in haplogroups and have not yet ordered a Family Finder.  We also have 58 kits that have taken advantage of the 3rd Party transfer offer  but are not yet unlocked.   Current members, please keep in mind you cannot be checked for inter-project matches without a completed and unlocked Family Finder test.

Do You have Iowan Roots?

As the Iowa DNA Project has grown, our membership has become increasingly varied.  As early uptakers of the FTDNA ‘Activity Feed’ it has been fantastic to see members sharing photos of their Iowa ancestors, asking questions, collaborating and sharing their successes.   Some of our members have specialized knowledge, databases and access to hard to find resources for their locale.  Our membership is not only spread across the United States, but also includes international members hoping to reconnect with missing branches of family known to have immigrated to Iowa.  Additionally, we have descendants of more recent immigrants, some who know the names of their ancestral European villages and their immigrant family’s Scandinavian farm names.

If you have Iowan roots, you are welcome to join us and encouraged to collaborate and share your family’s history and its place in the settlement of Iowa.

February 2016 Quarterly Report

The Iowa DNA Project was formed in November 2014 and has now reached 519 members.  The project is categorized as ‘geographical’, and is designed for those who have direct ancestry in Iowa, or those researching collateral lines that lived in Iowa. Our focus is on autosomal, aka Family Finder results, but we also have numerous members interested in testing and investigating their mtDNA and YDNA origins.

Those new to DNA testing are especially welcome and their research aims are supported and encouraged  within the project.  If you have tested with another company, you may wish to transfer your results to FTDNA and join us.  Instructions on how to transfer your raw results are available here.

Key Figures

  • Total Iowa DNA Project Members: 519
  • Family Finder Tests Completed: 427
  • Total Donations: $224  Current Balance $26
  • Highest number of database wide matches per member: 3500
  • Average number of database wide matches per member: 872
  • Highest number of Inter-Project matches per member: 11
  • Weekly Inter-Project Match Updates
  • All Iowa Counties Represented

Nuts and Bolts

The Iowa DNA Project Surname Index can be found here.  Surnames associated with specific counties can be found in our FAQ here.  Current members, if you’ve not already uploaded a gedcom and entered your Surname and Most Distant Ancestor details, you are strongly encouraged to do so. You can get detailed instructions on how to complete your profile here.

  • Total Iowa Surnames: 831
  • Members with Family Trees: 410
  • Members with listed Surnames:  459
  • Members with listed Most Distant Ancestors: 396

Iowan Family Groups

The long term goal of the Iowa DNA Project is the inclusion of multiple generations and extended family members who have taken the Family Finder test.  These family groups assist in helping inter-project matches determine how they may be connected and which branch of their family trees to examine further to prove their connections.  Last October, we teamed up with Göran Runfeld of dnagen.net  to trial his ICW Tool and to map out the interconnectedness of the entire Iowa DNA project.   Below is a depiction of the current extended connections between our members. ICW Tool 387 Nodes

Using the ICW Tool gives Iowa DNA Project members easy access to a variety of additional information and charts including a tabulation of our members’ Suggested Relationships.  As you can see, our members are actively recruiting close family members to test.

Suggested Relationships

  • Parent/Child: 68
  • Full Siblings: 54
  • Grandparent/Grandchild/Half Siblings: 28
  • Aunt/Uncle/Niece/Nephew: 28
  • 1st Cousin: 40
  • 2nd Cousin: 52
  • 3rd Cousin: 100
  • 4th Cousin: 236

ICW Count Bar

More can be learned about the ICW Tool’s process and results here.  Detailed information and access to charts and figures is available to project members.

 

Haplogroups

Project YDNAAs expected, the most common Y haplogroup is R and its subclades, with I and its subclades being the second most common.  To date,  28 project members have completed the Big Y test.  If you are interested in getting closer to your terminal SNP but aren’t interested in the price tag of the Big Y, there are numerous reasonably priced SNP packs available to help get you further down the phylotree*.

Confirmed Y

  • R-M269: 75
  • R (excluding R-M269): 52
  • I: 36
  • E: 5
  • G: 5
  • J: 4
  • N: 3
  • B: 1

More information on the project’s patriarchs and YDNA results can be found here.

*If you are unsure, check with your Haplogroup’s administrator for advice on which SNP pack is suitable for you.

Project mtDNA:  The most common mtDNA continues to be H and its subclades with a variety of other haplogroups also represented.  147 project members have completed Full Mitochondrial Sequencing.

confirmed mt

Member Haplogroups:

  • H: 81
  • K: 22
  • U: 27
  • T: 19
  • J: 14
  • I: 7
  • W:  4
  • V: 4
  • B: 2
  • HV: 2
  • L: 1
  • HVO:1
  • C: 1
  • X: 1
  • A: 1
  • RO: 1

Complete information on our project’s mtDNA matriarchs, statistics and mutations can be found here.

Declared Countries of YDNA and mtDNA Origin

Y origin

mt originMyOrigins Leaderboard

Based on percentage points per member, the Iowa DNA Project populations are listed below in order of frequency.  Descriptions of each population cluster can be found here.  Additional admixture tools can be found at Gedmatch.

On the whole, as our numbers have risen since last November, the populations seen in the project have remained at generally consistent levels with two exceptions.  Members with calculated Native American and Central Asian ancestry have increased.

  • British Isles 16,755
  • Scandinavia 10,093
  • Western and Central Europe 8650
  • Southern Europe 2577
  • Eastern Europe 1931
  • Finland and Northern Siberia 521
  • Asia Minor 496
  • West Africa 259
  • Ashkenazi Diaspora 184
  • Eastern Middle East 159
  • Central Asia 138
  • Native American 128
  • (Blended Population Cluster) Eastern, Western and Central European 100
  • Northeast Asia 83
  • North Africa 57
  • East Central Africa 8
  • South-Central Africa 6

100% Club:

  • 100% British Isles 5 members
  • 100% Western and Central Europe 3 members
  • 100% Scandinavian 1 member
  • 100% Eastern, Western and Central European 1 member

Coming Results:

Currently, we are waiting for a few kits to be returned to the lab for testing: 1 Factoid, 1 YDNA 12 Marker, 1 YDNA 111 Marker, 1 Y-Hap-Backbone, 1 mtDNA Full Sequence and  1 mtDNA Plus.  We have members who are predominantly interested in haplogroups and have not yet ordered a Family Finder.  We also have 40 kits that have taken advantage of the 3rd Party transfer offer  but are not yet unlocked.   Current members, please keep in mind you cannot be checked for inter-project matches without a completed and unlocked Family Finder test.

From the FTDNA lab, we are waiting for:  2 mtFull Sequence (1 delayed), 1 Big Y, 3 YDNA 67, 2 YDNA 111, 1 Y Haplogroup Backbone (failed quality control/delayed), 1 R1b-M222 SNP Pack, 1 R1b-Z253 SNP Pack, 1 R1b-L1065 SNP Pack, 6 individual SNPS (4 failed quality control/ delayed, 1 delayed) and 1 Family Finder (delayed).

Do You have Iowan Roots?

Many of our project members descend from families who were part of the pioneering settlement of Iowa that pushed in from the eastern seaboard, riding their prairie schooners west, until they found the bountiful farmland of Iowa. Additionally, we have descendents of more recent immigrants, some who know the names of their ancestral European villages and their immigrant family’s Scandinavian farm names.  If you have Iowan roots, you are welcome to join and encouraged to collaborate and share your family’s history and its place in the settlement of Iowa.

Happy First Birthday Iowa DNA Project

The Iowa DNA Project was formed at the end of November 2014 and for its first birthday has now reached 361 members.  The project is ‘geographical’ in nature, and designed for those who have direct ancestors who lived in Iowa, or those researching collateral lines that lived in Iowa. Our focus is on autosomal, aka Family Finder results, but we also have members who have had or are in the process of having their mtDNA and YDNA tested.  Those new to DNA testing are especially welcome and their research aims are supported within the project.

The previous (August 2015) Quarterly Report can be viewed here.

Key Figures

  • Total Iowa DNA Project Members: 361
  • Family Finder Tests Completed: 305
  • Total Donations: $105  Current Balance $6
  • Highest number of database wide matches per member: 3000
  • Lowest number of database wide matches per member: 1
  • Average number of database wide matches per member: 858
  • Inter-Project Matches: 233
  • Highest number of Inter-Project matches per member: 11
  • Weekly Match Updates
  • 96 of 99 Iowa Counties Represented

iowa mapNuts and Bolts

The Iowa DNA Project Surname Index can be found here.  Surnames associated with specific counties can be found in our FAQ here.

  • Total Iowa Surnames: 667
  • Members with Family Trees:276
  • Members with listed Surnames: 317
  • Members with listed Most Distant Ancestors: 292

Iowan Family Groups

The Iowa DNA Project has many pioneers who were the first to test within their immediate family.  However, the backbone of the project is the inclusion of multiple generations and extended family members who have also tested.  These family groups assist in helping inter-project matches determine how they may be connected and which branch of their family trees to examine further.  In October, we teamed up with Göran Runfeldt of dnagen.net  to trial his ICW Tool to map out the interconnectedness of the entire Iowa DNA project.   Below is a depiction of the connections between our current members.

atlas

Using the ICW Tool gives Iowa DNA Project members easy access to a variety of additional information and charts including a tabulation of our members’ Suggested Relationships.  As you can see, our members are actively recruiting close family members to test.

match totals

Suggested Relationships

  • Parent/Child: 64
  • Full Siblings: 38
  • Grandparent/Grandchild/Half Siblings: 22
  • Aunt/Uncle/Niece/Nephew: 22
  • 1st Cousin: 22
  • 2nd Cousin: 30
  • 3rd Cousin: 62
  • 4th Cousin: 114

More can be learned about the process and results here*.

*Additional detailed information is available to Iowa DNA Project members

Haplogroups

Project YDNAAs expected, the most common Y haplogroup is R and its subclades, with I and its subclades the second most common.  23 project members have completed the Big Y test.

Conf Y

Predicted Y

  • R-M269: 48
  • R (excluding R-M269): 44
  • I: 28
  • G: 3
  • E: 3
  • J: 2
  • N: 3

More information on the project’s patriarchs and YDNA results can be found here.

Project mtDNA:  The most common mtDNA continues to be H and its subclades with a variety of other haplogroups also represented. 105 project members have completed Full Mitochondrial Sequencing.

Member Haplogroups:

  • H: 68
  • K: 17
  • T: 16
  • U: 14
  • J: 12
  • I: 5
  • W: 3
  • V: 2
  • B: 2
  • C:1
  • X: 1

Complete information on our project’s mtDNA matriarchs, statistics and mutations can be found here.

conf mtdna

Declared Countries of YDNA and mtDNA Origin

Y COA

mt COA

MyOrigins Leaderboard

Based on percentage points per member, the Iowa DNA Project populations are listed below in order of frequency.  Descriptions of each population cluster can be found here.  Additional admixture tools can be found at Gedmatch.

  • British Isles 12,333
  • Scandinavia 6931
  • Western and Central Europe 6558
  • Southern Europe 1710
  • Eastern Europe 1403
  • Finland and Northern Siberia 345
  • Asia Minor 296
  • West Africa 158
  • Ashkenazi Diaspora 120
  • Eastern Middle East 106
  • (Blended Population Cluster) Eastern, Western and Central European 100
  • Native American 87
  • Northeast Asia 78
  • Central Asia 75
  • North Africa 35
  • East Central Africa 5
  • South-Central Africa 4
  • (Blended Population Cluster) British Isles and Western and Central Europe 1

As a matter of interest:

  • 100% British Isles 3 members
  • 100% Western and Central Europe 2 members
  • 100% Scandinavian 1 member
  • 100% Eastern, Western and Central European 1 member

Coming Results:

Currently, we are waiting for 3 kits to be returned to the lab for testing: 1 Factoid, 1 YDNA 67 Marker and 1 mtFull Sequence.  We have 13 members who have kits that have been transferred but not yet unlocked. Current members, please keep in mind you cannot be checked for inter-project matches without a completed and unlocked Family Finder test.

From the FTDNA lab, we are waiting for:

  • 2 mtFull Sequence (1 delayed)
  • 1 YDNA 37 marker
  • 7 Factoids (same project member)
  • 1 Y Haplogroup Backbone (delayed)
  • 1 R1b-CTS4466 SNP Pack
  • 1 R1b-L21 SNP Pack
  • 1 Big Y
  • 5 individual SNPS (same project member, 4 delayed)

Do You have Iowan Roots?

I would like to thank the project members for their patience and many efforts over the last year.  In October, I attended the Irish Genetic Genealogy Conference in Dublin, Ireland and had the pleasure of attending lectures, meeting cousins, members of ISOGG and other project administrators.  Lots of great information came out of the conference as well as ideas to make the project better. I look forward to making and sharing our discoveries in the months to come.

You can read more about the benefits of joining a project at FTDNA here.  If you would like to join the Iowa DNA Project, please visit our homepage here.  The project has converted to MyGroups and has activated its Activity Feed to encourage collaboration. The Feed may be accessed after joining and of course our links section is available to all.

Missing and Small Matches

One of the pleasures of having multiple generations tested is the ability to make comparisons.  Like many DNA testers, I’d love to track the source of each match’s connection and map as much of my ancestors’ DNA as possible. When a new match arrives the first task is to determine whether it is a maternal or paternal match, which grandparent it might belong to, and if possible, to assign a more distant ancestral couple.

The more matches you have to work with, the more likely you are to connect with those that will help determine the source of your DNA.  Due to the FTDNA match requirement of at least 20 cM total shared, each kit I manage has many more FTDNA matches at Gedmatch than it does at FTDNA. In some cases, these FTDNA kits match myself and my paternal grandmother Gladys, but not my father Steve.  To determine whether these matches are false or victim of the FTDNA 20 cM total requirement, I took the advice of the larger community.  It was a simple matter to search for FTDNA kits at Gedmatch that matched grandmother Gladys and myself but not my dad.

Regardless of where you have tested, at Gedmatch it is possible to lower the minimum threshold and compare kits on a 1 to 1 basis to tease out or force matches, depending on your perspective.  Is it wise to do so?  According to an ISOGG article on phasing, “It may be reasonable to map some segments in the 3-5 cM range if both the parent and the child share that same segment with the relative but caution is warranted when mapping segments that don’t contain at least 700 or more SNPs because some matching segments could be IBS and not IBD.

Normally, I do not lower the minimum defaults at Gedmatch nor do I recommend doing so.  If you are reducing the threshold at Gedmatch to compare with a suspected relative, to ‘prove’ a match below Gedmatch’s default levels, you are taking a big risk and not necessarily proving what you intended.  However, in this special case of using 4 generations to illustrate missing matches, small matches, and small matches that could appear to some as valid and belonging to a specific ancestral couple, for all comparisons I dropped the minimum levels to 350 SNPS and 3 cM.

Cousin Malcolm

Malcolm fit the pattern of matching my grandmother Gladys, myself and one of my children at FTDNA, but he didn’t match my dad Steve. It was a different story at Gedmatch.

Glad and Malcolm

Figure 1

Steve and Malcolm

Figure 2

As seen by comparing Figures 1-3, Malcolm, Gladys and Steve all match on the highlighted portions of chromosome 1.  I also have an overlapping segment on chromosome 1 as does my son Gavan.  Are the small, non-highlighted segments valid?  Generally, I consider them to be IBS. and whatever their origin, not large enough to pursue.

malcolm

Figure 3

My son Jeremy also matches Malcolm at segments up to 4.4 cM/784 SNPs, none of which were inherited from his grandmother Gladys or our common ancestor shared with Malcolm.   

Jeremy and Malcolm

Cousin Kay

Kay, too, fits the pattern of matching grandmother Gladys, myself and one of my children at FTDNA, and while she matches him at Gedmatch, she doesn’t match Steve at FTDNA.

Gladys and Kay

Figure 1

Steve and Kay

Figure 2

Lori and Kay

Figure 3

When comparing Figure 1 and Figure 2, Steve’s match on chromosome 1 occupies an area within the same start and stop points as the segment he shares with Gladys.  In Figure 3, you can see I also match Kay on chromosome 1, but my start point is 69, 937,274.  The DNA I match with my dad and grandmother has a start point for my dad of 70, 268, 967.  The differences in those start points makes it appear as though I share 8.2 cM of DNA as opposed to the 8.0 cM of DNA my dad shares with Kay.  Although a trivial amount, it could indicate my dad having no calls in that portion, or it could be a case of recombination.

Meanwhile, Kay matches my son Gavan on the same 8 cM segment he shares with me/Steve/Gladys.  On the other hand, my son Jeremy shares 5.6 cM/691 SNPs on chromosome 9 with Kay that he also shares with me but not my father or grandmother.  Jeremy and Kay may have a common ancestor through my grandmother on paper, but it is not reflected in their phased DNA results.

Jeremy and Kay

Cousin Bonnie

Bonnie also matches Gladys at FTDNA but does not match Steve.  Again, Steve has another new match at Gedmatch.

bonnie

On chromosome 1, Bonnie, my dad and I share 6.1 cM/362 SNPs that we don’t share with my paternal grandmother Gladys.  362 SNPs falls well short of the ISOGG recommended minimum of 7 cM/700 SNPs. Chromosome 18 shows a match between Bonnie and myself at 3.2 cM/514 SNPs.  My dad also shares a match with Bonnie on chromosome 18 at 3.4 cM/492 SNPs.  My start point on chromosome 18 precedes the start point for my dad, and is another example of possible no calls or IBS.  Either way, neither small segment was inherited through Gladys and her ancestor in common with Bonnie.

Bonnie and Lori

At reduced threshold levels of 3cM/300 SNPs, Bonnie also matches Gavan on segments that she only otherwise shares with me and not Steve or Gladys.  Bonnie and Jeremy share segments that are shared with no one else.

Gavan and Bonnie Jeremy and Bonnie

Cousin Sean

In this example, at FTDNA Sean matches only my grandmother Gladys.  However, at Gedmatch he is also on my dad’s match list.

Glad and Sean

Figure 1

As seen when comparing Figure 1 and Figure 2, Steve matches an 8.6 cM segment on chromosome 1 with his mother Gladys.  On chromosome 17 we see another small overlap:  3.1 cM/465 SNPs.  The start points vary.

Steve and Sean

Figure 2

Neither I nor my children match Sean at FTDNA or Gedmatch, but our results do represent what type of results we could expect if we were lowering thresholds and comparing 1 to 1 with out the safety net of additional tested generations and their data.  In Figure 3, my results are added and compared against my grandmother and father.  While Sean and I have numerous ‘matches’, up to 5.1 cM,  I didn’t inherit the vast majority of them from my grandmother Gladys or the ancestor we share with Sean, and none of them fall within the phased extreme minimum recommended range of 3-5cM/700 SNPs.

Sean and Lori

Figure 3

In Figure 4, my Irish born son Gavan is compared to Northern Irish Sean.  He also has matches, with segments up to 4.4cM/683 cM with Sean, although none of them were inherited from Gladys or the ancestor we share with Sean.

Gavan and Sean

Similarly, my son with deep American Colonial ancestry Jeremy also matches with Northern Irish Sean at up to 5.4 cM/838 SNPs, but again, none of the matches were provided by Gladys and our common ancestor.

Jeremy and Sean

Closer Cousins

chart

Previously, I’ve been concentrating on distant cousin matches that could easily be missed by FTDNA’s minimum requirements but could appear at Gedmatch with single blocks of shared DNA above 7cM/700 SNPs.  In the following examples I am concentrating on another multi-generationally tested family.  Their patriarch, CK is my grandmother Gladys’s 2nd cousin through common ancestors Henry Kane and Katherine Forrestal of County Mayo, Ireland.

Gladys and CK, as second cousins, share abundant DNA in excess of 7 cM/700 SNPs from Henry and Katherine.  They also share 2 segments above 5cM/700 SNPs on chromosome 15.

Gladys and CK

Two of CK’s children, HaK and HeK have also tested. In Figures 1 and 2, we see the DNA they share with both Gladys (G) and CK (C) highlighted, as well as segments that are partial overlaps with Gladys and CK.

Gladys HaK

Figure 1

Glad and HeK

Figure 2

In Figure 3, we see the DNA shared between CK and Steve, Gladys’s son.  All the highlighted portions match CK, Steve and his mother Gladys, including a 3.9 cm/772 SNPs segment on chromosome 15 and  3.9 cM/400 SNPs segment on chromosome 16.  The segments that don’t match Gladys fall below the 700 SNP range.

Steve and CK

Figure 3

Adding a 3rd Generation

HeK and HaK both have children that have tested.  HeK’s son does not appear on any of the match lists of Gladys, Steve, Lori, Jeremy or Gavan.  However, HaK’s children, KaK and KeK do and are shown below, with the highlighted portions illustrating the segments they share with Gladys (G), their grandfather CK (C) and their father HaK (H).

Gladys and KaK

Above, KaK matches Gladys, her grandfather and father  on chromosomes 3, 4 and 13 and partially overlaps on chromosome 6.  The match she shares with her father on chromosome 8 doesn’t match the DNA shared by CK and Gladys. Of the remaining segments KaK  shares with Gladys, on chromosome 1 she shares 3.1 cM/854 SNPs which she does not share with her grandfather CK.

Below are highlighted the shared segments of KeK, his father HaK (H), grandfather CK (C), and Gladys(G). KeK matches his father, grandfather and Gladys on chromosomes 6 and 13 match and partially matches them on chromosomes 3, 15 and 19 . On chromosome 1 KeK share the same 3.1 cM/852 SNPs as his full sibling KaK.

Gladys and KeK

Gladys(G) has a grandchild and Steve (S) a child who has tested (me), so I am also able to compare my segments against the group to ferret out DNA I’ve inherited from Katherine and Henry via my grandmother Gladys.

Lori and CK

In the above example all highlighted matches except one on chromosome 15 match Gladys, Steve and CK.  The smaller segments match neither Gladys nor Steve.

Adding a 4th Generation

My sons make up the 4th generation.  Below, Jeremy has one match at 50.3 cM/13,569 SNPs shared by CK, Gladys, Steve and myself as well as one that is 3.4 cM/492 SNPs. Two of the non-highlighted matches he shares with CK but not his mother or the rest of the group are in excess of 700 SNPs.

Jeremy and CK

Gavan has 4 matches shared between CK, his mother, grandfather Steve and great-grandmother Gladys. None of the non-highlighted matches Gavan shares with CK but not the rest of the group are in excess of 700 SNPs.

Gavan and CK

Putting it Together

Determining whether a match is valid is clearly extremely important when working with your results.  Making sure you have added your kit to Gedmatch, whether you have tested at Ancestry, 23andMe or FTDNA is an essential part of the process.  I haven’t yet gone through all the FTDNA matches missing from my dad’s list that Gladys and I share, but I have yet to find a FTDNA match that has also uploaded to Gedmatch that he doesn’t also match above 7cM/700 SNPs.

Recombination, crossover, IBS, IBD and phasing are important concepts all budding genetic genealogists must grapple with.  Minimum acceptable segment length will doubtlessly continue to be debated and redefined.  Certainly, if you are using reduced thresholds/small segments and haven’t tested a parent(s) you are taking a very big gamble.

For further reading you might be interested in: Small Segments and Triangulation by Jim Bartlett,  Hotspots and Crossover,  and Anatomy of an IBS Segment and What a Difference a Phase Makes by Ann Turner.  You might also wish to add your voice to the subject at the FTDNA forums.