3. Integration Introduction

The CFS uses FamilytreeDNA for all yDNA testing because they have many more testers in their database than any other testing company. FTDNA also has the best tools, one of which is shown here in Figure-1. We call Figure-1 the Clay Group Project Matrix. It is where testers who join the FamilytreeDNA Clay Project have their results shown along with all the other testers in the Clay Project. Figure-1 only shows a small part of the upper left corner of our Clay Group Project Matrix, specifically those tester kits that are related to Virginia Clays and John Clay(e) in particular. All together, we currently have 130 testers in this FTDNA tool.


FamilyTreeDNA enables your Group Project Administrators (John Clay, Pat Dunford, Bill Schultz) to define the text and color of the Subgrouping rows. Administrators can also move Kit #’s between Subgroups based on a tester’s Terminal Haplogroup (6th column) and his STR mutations, (7th and greater columns) that extend far to the right ( the number of STRs is based on the level of the yDNA test).

The names of the testers are blacked-out because FamilytreeDNA has determined that showing a tester’s name and Kit# together in public is a violation of their privacy policy.

We actually begin to integrate Genealogy and yDNA within Figure-1.

It’s in with the colored Subgroup labels. There are four sections to a Subgroup label as follows:

  1. The first section is the tester’s Tree name as it appears in TNG genealogy database and this Earliest Known Clay Ancestor (EKCA)’s (birth-year–death-year) in parenthesis, followed by a dash “–”
  2. The second section Is the tester’s Most Recent Common Clay Ancestor (MRCCA) by yDNA, which is the Subgroup’s Terminal Haplogroup birth-year and range of possible birth-years within parenthesis and followed by a dash “–”
  3. The third section Is the tester’s MRCCA by genealogy within The Next Generation (TNG genealogy online database (i.e. his Name birth-year – death-year within parenthesis, followed by a dash “–”
  4. The forth section is any helpful comments.

Another thing to note about Figure-1 is that Subgroups with a Big-Y Terminal Haplogroup have a DARKER shade of color than the related lower level Subgroups tested at y12, y25, y37, y67 or y111 (like Subgroups 1.1c and 1.1d). Big-Y tests, y700, have 700 STRs.

Current Status of Big-Y Upgrades

In Subgroup 1.1c the tester in row 11 is in the process of upgrading to Big-Y…

Also, one of the 24 kits in subgroup 1.1d is being upgraded to The Big-Y. Expect new findings within the next 3 months.

The FamilytreeDNA Time Tree Tool

Figure-2 FamilytreeDNA’s Time Tree Tool

Figure-2 clearly shows our Virginia Clay Big-Y Terminal Haplogroups both in both Tree and Time relationships. The far right circles are our 8 Big-Y testers of Figure-1. Note that 4 of those 8 testers show the country flag of their Earliest Known Clay Ancestor (EKCA). As you can see, they match column 5 of the Clay Group Project Matrix. Tester 2 thought his EKCA was from Ireland, testers 1 & 3 from England, and tester 6 Wales. The world icons of testers 4, 7, 8 & 5 indicates that they either did not know where their EKCA came from, or just didn’t fill in the location field when they completed their FamilytreeDNA forms.

If you’ve followed the logic to this point you’re now ready to view the individual Clay line Integrated Genealogy and yDNA Haplotrees and then The Ancient Clays Haplotree that integrates all the Clay line in one diagram.