How do the 4 books work...what I mean is, how do you determine which book might be the one with your family line? I just recently discovered that my family is descended from Mary (Polly) Shelburn(e), daughter of John Shelburn(e). So, would Mary's info be in the book of John? Or, is it iecessary to travel further back? And, are any of these books available?
(Pardon my lack of knowledge - I'm a newbie here!)