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Forum: Paternal Lineage (Y-DNA STR) Basics 5th March 2018, 09:44 AM
Replies: 41
Views: 6,243
Posted By John McCoy
You are correct in questioning the idea that the...

You are correct in questioning the idea that the situation of Y-DNA matches who share a surname (without specifying the circumstances) alters the probability that "genealogically significant"...
Forum: Paternal Lineage (Y-DNA STR) Basics 25th October 2017, 01:04 PM
Replies: 41
Views: 6,243
Posted By John McCoy
Concerning the stability of surnames once adopted...

Concerning the stability of surnames once adopted at some point back in medieval times, don't count on it!

If you have the opportunity to study feudal tax records (known as "terriers", in many...
Forum: Paternal Lineage (Y-DNA STR) Basics 24th October 2017, 02:58 PM
Replies: 41
Views: 6,243
Posted By John McCoy
My own complete lack of convincingly close Y-DNA...

My own complete lack of convincingly close Y-DNA matches (Y-111 and Big Y) has allowed me to ignore all of the other McCoy families who have tested. Their McCoy genealogy is simply not my McCoy...
Forum: Paternal Lineage (Y-DNA STR) Basics 24th October 2017, 09:04 AM
Replies: 41
Views: 6,243
Posted By John McCoy
I would not want to base any genealogical...

I would not want to base any genealogical conclusions on such a match.
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