In the early days I had a g'uncle of my g'dad as his g'dad & married to his brother's wife.
Yes. This! :o
Now that I've got my head together, Malcolm; I remember there was another family. Very military. One, I believe I recall correctly, is buried in a cemetery I remember well. Along with his VC. Fair play to the guy.
Had murders, back in the day, keeping them apart. Looks like one slipped through. Be fascinating, actually, to see how far I took myself. Hey ho.
Over a Hundred perfect beings have read this, look. You and I are the only two to have made a cock up ;)
(https://i.postimg.cc/PJLhqm9K/Earlier-Genealogist.jpg)