What Are Double Cousins?

In working on a family tree, you may have seen cousins that aren’t just simply first cousins (children of siblings who marry unrelated people), they may be what is called “double cousins”. How Does This Happen? Double cousins are when two siblings of one family have children with two siblings of another family (brother/brother, sister/sister or brother/sister, sister/brother). The children are related to…

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