Hi; can't help on William Cain, but just became involved in genealogy and I am also a direct decendent of Thomas Cain. He would be my 3rd great grandfather. I live about 15 miles south of Pierpont, Ohio where Thomas and Margaret lived. I have visited the cemetery where they are interned but know very little of their lives. I would like to know more. Just saw the bullitin board queery and wanted to respond.