I have been searching for my great grandfathers family for several years now. My grandfather was Thomas J. Libby from Mifflin Co. The problem is he doesn't show up on any census until 1870 when he is 15 years old, He was born 1855/56. He lists his father's birthplace as Pa. Later in other census' he lists father from New York and Maine. His death certificate says father born in Ireland. I can't find any Thomas' in census that would have him ie 1850.60 Not until 1870. Also death certificate lists Thomas as his father Mary Shawver as his mother. Researched that and found nothing.