CR 100 160: possible earlier mission in 1838: "baptized March 7, 1838, by Elijah Fordham; ordained an Elder and sent out to preach, with laboring principally in New York" Alt baptism date 7 March 1838. Alt baptism date 7 March 1837 (Early Church File on Nau Land) Orson Pratt served a mission in New York in 1837. Alt baptism 7 January 1857 by Parley P Pratt.
His obituary states that he came to Salt Lake City in 1851. In 1855, he was called on a mission to California. He returned in 1857 with the Sessions Company. He was the Company Chaplain. A few days before the company arrived in Salt Lake City, he left the company, with two others, on 10 August 1857.