Every time I am writing one of these posts, I end up spending most of the day searching all the nooks and crannies of the Internet. It's just amazing what a Google search can turn up. Both Charles and Ansel were born in Connecticut. The only record I have for Joel's place of birth is from the 1880 census for his daughter, Sarah Ann Fox. Both her parents are listed as being born in New York. Peter Fox is a New York Fox.
Peter's family is difficult to reconstruct. Josiah is the only other individual I can place. He has two males born between 1795 and 1800. By the 1820 census, both of those individuals are gone. Peter Fox is the only household with the surname living in Schuyler in the 1820 census. I guess I'll put this family on my research list for Salt Lake City, too.