Saumel traveled with his mother, Catherine Thomas, and siblings Catherine and Sophronia Moore. They sailed to America in 1863 on the ship Amazon. On the ship Catherine and Sophronia surname is spelled "Moir." The first documentation to place them in Utah is Catherine's (the daughter) rebaptism in the Slaterville Ward on 2 June 1864, which was prior to that year's emigration season.
In the entry for Thomas Shore Wadsworth, in Pioneers and Prominent Men, it is noted that the family traveled in the Ricks company, which came in 1863, but further research is needed to verify that.
Birth date is confirmed by his death certificate and Find A Grave website.