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Unexpected Grace Y-DNA results
Posted by: John Grace (ID *****5555) Date: April 09, 2009 at 05:39:01
  of 1731

Several years ago I had an in-depth Y-DNA analysis done. The results were posted on the internet. I had hopes that I would find other Grace's with matching or similar profiles, and that the new leads my be valuable for future genealogical research.

What resulted was quite unexpected. A few months ago I received an email from a researcher named Winegarner. His Y-DNA profile was an almost exact match to my own on our 67 marker tests! Familytreedna calculates this as a genetic distance of 1, meaning that the probability that we share a common ancestor is:

4 generations is 46.92%        
8 generations is 85.95%        
12 generations is 97.23%        
16 generations is 99.53%        
20 generations is 99.93%        
24 generations is 99.99%

Interestingly, our ancestors both lived in northeast Virginia in the late 1700's, and in central Ohio in the 1800's to the 2000's. There was in fact a marriage between my great grandmother's cousin and a Winegarner female in 1866!

Has anyone else come across a similar congruence of DNA and family history?


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