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Old 12th January 2015, 08:45 PM
tlgarrison tlgarrison is offline
FTDNA Customer
Join Date: Jul 2014
Location: Illinois
Posts: 132
Originally Posted by GoneResearching View Post
I have seen a few Relationship

BUT has anyone at FamilyTreeDNA or elsewhere figured out how being your own cousin affects those numbers/percentages with cousins of that branch? I assume they would go up but by how much – a little or a lot?
I have a couple lines with first cousin marriages and yes it affects the the outcome of the Algorithm used to calculate the estimated generations to your common ancestor with your matches along the same lines. For instance if your are a descendant of a 1st cousin marriage your estimated generations to common ancestor with a match along the same line will be wrong and is probably about twice the generations listed. 2nd cousin marriages would not be as much but would still bump up the total cM's shared between their descendants down the line.
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