The new yeamansyoumans.com family history site is now operational.

Testing using the latest BigY-DNA 700 techniques is now underway!  Our past ancestors Y-DNA is beginning to tell a very interesting story.

An article entitled: genetics and genealogy, Genealogicaland Y-DNA Testing on the Yeamans/Youmans Family was published in the spring2020 addition of the American Ancestors Magazine. This article explains the resultsthe Big Y-DNA testing to date.   A pdf copy of the article is available at thisurl:  https://www.thomasrogerssociety.com/Genetic2020.pdf

If you look at the Youmans-Yeoman-Yeamans-Yoemans-Clan -Y-DNA Colorized Chart and focus on the green band labeled R1b1b2, you will seea list of 19 project members who have had their Y-DNA tested at the 37, 67, or111 marker levels since the inception of this project in 2010.  UsingFamilyTreeDna analytical tools, it has been concluded that all 19 individualsshared a common ancestor within the past 12 generations or less. The shorttandem repeats (STRs) testing of the type completed by all 19 individualsfocuses on the repeated sections in DNA that can vary between populations andgenerations.  According to the science, STRs are ideal for determiningcloser relationships—perhaps within 10 generations or so, but they do not tellyou who the common ancestor is with certainty.  

This is where the new FamilyTreeDna Big Y-DNA 700 DNAtesting technique is brought to bear.  This testing technique looks atsingle nucleotide polymorphisms (SNPs), which are single changes in the DNA.Definition: SNP is a Single nucleotide polymorphisms, frequently called SNPs(pronounced“snips”) is a single change to a DNA building block, called anucleotide.

Some of these SNPs have avery slow rate of change (think tens of thousands of years!), while otherschange much faster. This steady nature of many SNPs allows scientists andgenealogists to learn about human migration and the relationships of their owndistant ancestors. The “700” part of the test refers to the 700 STRs that aretested.  As of 1/17/2020, nine (9) project members have been tested usingthe Big Y-700 DNA testing technique.  Here is what we learned so far fromthese tests:

 1.      All of the SNPSin the table below are shared collectively by all 19 members. The order thatthe SNP mutations occurred is not known. Unique family mutations generallyoccur about every three generations with a generation being 25 years.

2.      Therefore, thenumber of generations since the inception of the lead SNP R-FT161984 occurredis about 147 generations or 3,675 years old (1,675BC) . (49 mutations * 75years= 3,675 years)

3.      This tablerepresents the specific SNPS (think ancestors) that are share in commonindividuals who have been tested.  By extension, these SNPS are alsoshared by nine other individuals who have jet to be tested.  It ispossible that some of the remaining individuals who have jet to be tested willbe tested for specific SNPS, which is a less costly approach.

To learn more about results, please visit Alex’sBig Tree at URL: https://www.ytree.net/

Scroll down to this hyperlink:  P312>Z290>L21>DF13>FGC5494  You can also getthere by cutting and pasting this link into your browser.

https://www.ytree.net/DisplayTree.php?blockID=18

Use the crossbar at the bottom to find theYoumans/Yeamans family grouping.  You can also use the F3 key to do assearch on either Youmans or Yeamans.  The Big Y Tree is a draft phylogenetic treefor the R-P312Y-DNA haplogroup show where the Yeamans/Yeamans fit into theoverall tree.  Working down from the top, you will eventually arrive atthe big block which shows the 49 SNPs that are shared in common by the nineindividuals who have been tested so far.  Below this big box, you see theunique family groupings.  The 10 kit boxes on the left are the southern(Georgi and South Carolina) Youmans/Yeomans who trace their lineage back toCapt. Levi Youmans (born 1750).  The four kits on the right trace theirlineage back to the Christopher Yeamans/Youmans (born 1638) New York line. You can learn more about how these individuals are related to each otherby reading the “Results” tab located on this website.  More informationand analysis of the tests results is provided in the "Results" sectionof the project website