Have a look at 863 on the Compton message board. Sarah Compton was a grandmother of Sarah Baird Applegate.Compton was also, I think, a second sousin to the Hannah Salter who married Mordecai Lincoln in 1714 and became -- if I remember it right -- a great-great grandmother to Pres. Lincoln. Once I'm back at work, I can e-mail you the electrons of an org chart that I threw together to explain it to my family.
I was really keen on my great great grandfather Adrian Applegate having been something like a fifth or sixth cousin to Lincoln. Probably didn't get him an invite to the Inauguration, but it felt like cool beans when I stumbled on it.