In the 1860 Utah census he was listed as "Samuel Gully" in the home of his mother and stepfather John C. Witbeck. The 1856 Utah census shows his name as "Samuel Whitbeck," in the home of his mother and stepfather.
His death date that we have shown comes from FamilySearch and Ancestry.com, but no confirming sources are linked to either database, and we have not been able to confirm that information.
The 1880 Utah census shows a Samuel Gully married to a Promelia Gully, but we know that this is not our Samuel Gully. This individual was born about 1849, but his father and mother were born in New York, not North Carolina.