The family is documented in both the Roundy and Snow 1850 companies. These companies traveled closely together. It was not uncommon for families or groups to move from one to another.
Mary's birth date is confirmed by Church membership records. She was born in England.
Mary and William were divorced 15 June 1853. On May 2, 1854, she purchased land in Salt Lake City under her maiden name, "Mary Aspen."