Y-Chromosome DNA Test Results
Current as of 07 May 2008
The Gordy DNA Surname project is facilitated through FamilyTree DNA. The DNA analysis is done by the Houston Genomics Center.
On 21 July 2007 a transfer of the Gordy data that was initially associated with the Cary/Carey Surname project was completed. The result and linage charts now displayed by the links below originate from the Gordy DNA Surname project.
On the DNA result chart, each row contains the data of one man and is identified by a unique code number which is also placed on the lineage chart to show the documented genealogical relationships of each man tested. (As on other areas of this site, we do not list living individuals on the genealogical charts.) The chart data are organized and color coded by earliest documented ancestor. As we acquire more participants under each common ancestor, it will be possible to project a haplotype for that group. At that point we will begin to make match comparisons between each individual and the group haplotype rather than between individuals. As an aside, it is not possible to develop a group haplotype from only two individuals unless they are identical, because only integral values have meaning in a haplotype. It is therefore not informative to "average" the integers found at the same location in two individuals. Moses Gordy I and Peter Gordy I descendents are grouped and shown in blue. John Allen Gorday descendents are shown in yellow.
The two markers (DYS#390 and DYS#458) that initially appeared as distinctly different between the Peter I and Moses I lines are now shown to be mutations that occurred later in the Peter I line. Data from additional men in the Peter I line will help us pinpoint where those mutations occurred.
We now have enough participants across both lines to calculate an initial Gordy Modal Haplotype. Please note that this initial modal will probably have to be modified as we add the data of additional men from other sub-branches under Moses I and Peter I. The current Gordy Modal Haplotype is identical to the haplotype of G6 and G7.
The addition in February 2008 of two new results, G10 and G11, increases the number of Peter I participants to seven. The Gordy Modal Haplotype (identical to G6 and G7) remains unchanged by these additions. Most of the variations from our modal that we see now are one step changes that occur uniquely in only one tested individual. The exception to that occurs with second cousins G1 and G2 (descended from Peter/Peter II/Leonard/William M/ William D.) who both show a value of 25 at marker 390. Additional testing might determine where this mutation originated and thereby provide a marker to help identify a particular sub-branch of the Peter line.
In May 2008 we added G12, our third Moses I descendant. This one was exciting because he is an exact 37 marker match to G6 and G7 and to the Gordy modal haplotype. We now have the modal haplotype occurring in both the Moses I (G12) and Peter I branches (G6 and G7, each descendants of different sons of Peter). This implies that the haplotypes of Moses and Peter were the same and increases the odds that the haplotype carried by these three men was the haplotype carried by the father of Moses and Peter.
New data and their associated lineages as well as any appropriate modification to the Gordy Modal Haplotype will be posted as that new data becomes available from Family Tree DNA.
Both "Results" and "Lineage" links will open in a separate new window so that you may view them together.
DNA Donor Lineages Latest information added 07 May 2008.
DNA Result Chart Latest information added 07 May 2008.