• She was traveling with her mother and siblings. They are seen in Iowa at the time of the 1850 federal census and are first placed in the Valley by a listing of persons indebted to the Perpetual Emigrating fund. This document indicates that "Mrs. Mariah Crosby" traveled in 1851. In the 1852 "Registry of Names of Persons Residing in the Various Wards As To Bishop's Reports, Great Salt Lake City" she is listed as "widow" Crosby, living in the Salt Lake Second Ward.

Company Unknown (1851)

• Age at Departure: 9

Sources

• 1850 Iowa Census
• "Mrs. Emily M. Williams," Deseret News, 17 February 1920, 2:5.
• Names of Persons and Sureties Indebted to the Perpetual Emigrating Fund Company from 1850 to 1877 Inclusive [1877].
• "Registry of Names of Persons Residing in the Various Wards as to Bishops' Reports, Great Salt Lake City, Dec. 28th, A.D. 1852" in Key to Migration Sources, Great Britain and North America: A Manual for Students Attending the Second Annual Priesthood Genealogical Research Seminar, June 19-23, 1967 (Provo: Brigham Young University Division of Continuing Education, 1967), edited by Norman Edgar Wright. 
• Utah Death Certificate Index, 1905-1967.