I was very surprised when I decided to see if I could find any information on my gggggparents, Josiah Edgerly and Abigail Ross, and saw your messages. Is this the same Josiah you referenced?
I have no information on them other than two children - Abigail Augusta and David Jefferson. My line goes through Abigail who married Lewis Chamberlain Nuite, 28 Aug 1842 in Alton, NH. They lived in Dover-Foxcroft.
I'll be glad to share any information I have or may find.