William Dearborn Brown, his wife, and family joined up with the Walling Company. However, they were not listed in the (Emigration List for Spring, 1860) company roster. William Dearborn's account of the journey mentions his wife and family. Also, The obituaries of Amasa David Brown, state that Amasa, William Dearborn Brown, and Harriet Francis Hatch Brown came to Utah together in 1860.
More research is needed to confirm Sarah's dates of birth and death. Dates listed reflect family tradition from Family Tree at FamilySearch.org.