Follow-ups on people mentioned earlier in this thread:

Allan Block still holds forth at the Old Songs Festival, where every year he takes a booth for his leather crafting, and every evening holds forth there in a jam session with whoever shows up.

Bill Vanaver and his wife Livia (nee Drapkin) are still active and around: http://www.vanavercaravan.org/index.html

And Luke Faust's daughter Helena (married for a while to Jimmy Triplett) studied the music of West Virginia when she lived there, but has since gone back to New Zealand).

--Charlie Baum