re: Ever discovered a ancestor or relative was a very bad person

My lineage on my Dad's side is great (pastors and war veterans) until you hit my grandfather. Never met him. He was a traveling vaudeville actor and had two wives, one in Florida and one being my grandmother. Worse is my grandmother and his children with her was the family he had "on the side." And supposedly my grandmother's father was convicted for embezzlement in the 19th century.

Mother's lineage is pretty normal - just a lot of Irish, Germans and French who came through the Port of New Orleans in the 19th century.