Name also given as Hans, Peter Olsen. Alternate Birthdate: 7 Jun 1822 - source: Jensen's Mission Register. Father's middle name also spelled Olefnkinnsen or Gustinussen Piercy. Family Trees for George Piercy or Hans Peter Olsen/Olson or his wife can not be located. Died in St. Joseph, Arizona. Alternate spelling of last name is Piersey and Percy.