I was amazed to find that I have DNA matches to descendants of Thomas Dewey the Settler (Dewey-54) born 1606. My paternal uncle, my son and I have all taken the Ancestry DNA test; we all live in England and are descended from the Wiltshire Dewey line. I searched for ‘Dewey’ & ‘Windsor’ within Ancestry’s ‘DNA hits’ results data (about 30,000 matches) for all 3 tests and we have a combined total of just over 40 hits. This is only made possible by the endogamy genetic effect. I believe this proves we 3 are descended from The Settler’s parents, Thomas Dewey Snr and Mary Moore; the details of my research and basis of my conclusions can be found on my website www.deweywiltshireroots.org.uk.
In the last few days I have been researching Abigail Dewey-88, a disputed child of The Settler. Yesterday I found 2 DNA matches on Ancestry, me to ‘K.W.’ and to ‘janetlynn66’, both are managed by halvo110 and linked to the Halvorson tree. This tree goes back a bit further than the marriage of Abigail Dewey to Thomas Cutler. I think these 2 items of DNA evidence strongly suggest that Abigail Dewey existed.
It concerns me that WT standards seem to set the bar too high to allow the full benefits of DNA to family history research; from their wiki/Help:DNA_Confirmation page on acceptability:- “If the DNA testing company has predicted that you and your match are third cousins or closer and this corresponds with your genealogically-known relationship, continue“.