Two of my students posed a question to me because they know I’m a genealogist. They wanted to figure out how they are related. To retain their privacy, I am changing their names and identifying names of some of their relatives. Here is what I know:
- Harold had twin children named Joyce and Michael.
- Michael had a daughter Susan, who was my student Bill’s mother.
- Joyce had a son named Jon, who married my student Sally’s paternal aunt, Lisa.
As far as I can figure, that means that Bill and Sally share cousins, but are only related by marriage. Bill’s second cousins, the children of Jon and Lisa, are Sally’s first cousins, as they are the children of her aunt.
Is there are way to express the relationship between Bill and Sally? I don’t have big prize money to offer, but if you like a challenge and feel like tackling this one, have at it. I can use your help in figuring this one out.
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