Tool to find cousin marriages in family tree
I'm imagining a tool that would search a family tree for married couples who were also cousins. I've long known that my grandfather's brother FA was married to his first cousin EJ. I've more recently discovered that FA's mother's sister AK was also married to a first cousin WH and that AK and WH's son JH married his first cousin EH. And then there are the parents of EJ who were second cousins...
I have a feeling there are more to be discovered as these families were very large through the generations.
Maybe there is already a technique for doing this, but I can't think of it.