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Old 22nd July 2017, 08:35 AM
Armando Armando is offline
FTDNA Customer
Join Date: Jun 2009
Posts: 1,702
Originally Posted by TwiddlingThumbs View Post
If it's a different surname, then a gd at 67 does not mean they match. Lots of false positives with different surnames. FTDNA's gd guidelines re matches only apply to men with the same surname.
There are too many NPEs to be able to state that a 67 marker match with a person that has a different surname isn't a match from a genealogical timeframe. The false positives can only be confidently be weeded out by Y111 and/or BigY testing or a similar NGS or WGS test.
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