Peter was an orphan who was under the care of David and Laura Peters. They brought him to America from Wales in 1849 on the ship Hartley, and he appears with the Peters family on the 1850 Utah census. He remained with the family until about 1855. His travel to Utah is confirmed by his obituary.
He was rebaptized by David Peters in Salt Lake City on 3 March 1850.
Date of birth from rebaptism records.