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It’s just funny because I’m not a genealogist, amateur or otherwise, but I ran into both these posts on the same day.
Nice blog Mark.]]>
I appreciate your feedback. Let me make sure that I understand what you are saying. In order for it to be a full cousin relationship both people being compared must be related by a most common ancestral couple. So in order for the cousin calculator to be accurate, it must show a couple at the top and not an individual. If two people are related to a common ancestor but not the same couple, then it is a half relationship. In order for it to be a full relationship, they would need to go up another generation to the parents of that common ancestor. Every half relationship can be changed into a full relationship by going back one more generation.
You need a couple to have the relationships you mention. I have been trying for years to get this straightened out on the internet where copiers are at work copying that wonderful cousin graph over and over.
So how about a cousin whom you share only a grandfather with. That would be a half-first cousin. If one would think of an grand parental COUPLE instead of a single ancestor, that would correct the situation. YOu might argue that going way back it doesn’t matter by much, reducing the ancestral connection by 1/2 of a very little bit. But in genetic counseling where half siblings mean a great deal, compared to full siblings, it is a dreadful mistake.
THomas H. Roderick, Ph.D.
Bar Harbor, Maine