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Adoptees Forum This is a forum for adoptees and descendants of adoptees to share their research experiences and exchange information as well as tips. This board is open to customers and visitors.

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Old 29th December 2016, 04:39 PM
HollyC HollyC is offline
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Join Date: Jun 2015
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Twist on matching DNA

Iím looking to identify my grandmotherís birth family. She was adopted in 1907 before government adoptions. My mother has an autosomal match in Gedmatch with a woman of total cM 137, longest 31 and generation distance of 3.4 We have found the matches great grandfather in the 1906 census living with his younger sister and a child of one year, which is probably my grandmother. Could we have this type of match if the mother of the child was the sister, and her great grandfather wasnít the father? Or would her great grandfather have to be the father to have this match? There doesnít seem to be a registration for the birth to verify parents. Thanks for any suggestions.
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Old 2nd January 2017, 10:59 AM
HollyC HollyC is offline
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Smile Answered my own question

With a little research I found a site called: www.dnaadoption.com which has many useful resources including a chart that allows you to predict and combine results from different DNA companies. The chart has allowed me to identify the parent of my grandmother.
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