Triangulation at eight generations is great! The more examples of way-back triangulation floating around the genealogy-sphere, the better.

I was going to write about this before Person B came along, so I'm glad I waited. I'm also glad I've invited all of my 23andMe anons, because that's what Person B was. They accepted the share request and told me the (distinctive) name of their father. From there, it was surprisingly easy to work the American parts of their tree back using good sources.

(But then just yesterday I had a really nice match here blow off my GEDmatch request because he didn't see anything in common in our trees. A 96% match... sigh. People continue to not notice their empty branches. I kind of wish Ancestry would display a special version of trees on match pages with a red box in every blank spot and the words "Unknown Ancestor!" Hmm, is there still a feedback button? Off to check, lol..)