do u have the book livermore family of america by walter thwing
if not is very useful in searching past ancestors also genealogies of watertown ma by henry bond has alot in it I have reproductions of both books if u need any info from them.
My brother is the one who has been doing alot in this area but i just am really trying to find out who my great grandpa was would be interesting i thought.
Would be more than happy to compare or swap info with ya
Have also pics of gravestones of some of the earlier ancestors such as john who came over to america in 1634 and some of his sons and grand children thou just my direct ancestors.
Good luck in your search