Thomas Griffin was Peter Griffin's great-great-great-great grandfather. He was a renowned philosopher. When his wife asked him to find a job in "Peter Griffin: Husband, Father...Brother?", he responded with the question, "Why?". Retrieved from "https://familyguy.fandom.com/wiki/Thomas_Griffin?oldid=164532" Categories: Griffin Family Deceased Community content is available under CC-BY-SA unless otherwise noted.