Mary,
What a nice surprise. You know I seem to remember meeting you around 50 years back(!) when you were in Tacoma on a visit. Might that be? Or was it Frances?
I have searched a bit for ancestor information but not often & not very far—that posting you found was from 2001, I think (I use library computers & you only get a certain amount of time; plus reading on monitors tires/strains my eyes.) I have found some things about Sebra Inlay & family, which you may well have found yourself (e.g. 1880 census records). At one point I found the names Jonathan Porter Inlay and Serepta Sharp for Sebra’s parents, and Braddock Dunham and Charity Corbin for Jane’s. Nothing further back.
My mother has more information about Sebra & descendants that she got from Frank Stevenson. I’m sure she would we happy to send copies if you ask, and I’m sure she’d be pleased to hear from you. I could send you what little bits I’ve found on the web, if you give me your mailing address.
All best wishes, K.