• Erastus was part of the 6th Company of Ten led by Charles Shumway. He served a mission in the states in 1861.

Brigham Young Vanguard Company (1847)

• Age at Departure: 28

Brigham Young Company (1848)

• Age at Departure: 29

Orson Pratt/Ezra T. Benson/Ira Eldredge Company (1854)

• Age at Departure: 35

Company Unknown (1861)

• Age at Departure: 42
• Returning Missionary

Sources

• A Mormon chronicle: the Diaries of John D. Lee, 1848-1876 edited and annotated by Robert Glass Cleland and Juanita Brooks (1955), 1:30-79.
• Albert P. Rockwood journals, 1847-1853, Journal, 1847 April-July.
• Alexander Neibaur journal, 1841 February-1862 April, 26-38.
• Amasa M. Lyman collection, 1832-1877,  Journal, 1847 April 8-September 10, 1-26 and 1-10. Events recorded by Albert Carrington.
• Appleton M. Harmon diary, 1847 April-July.
• Benjamin Ashby autobiography, circa 1897-1904, 25-30.
• Charles A. Harper diary, 1847 April-August.
• Charles Wilson Nibley, "Account concerning Erastus Snow and the Mormon Pioneers, 1920," 45-46.
• Eliza Ann Haven Westover letter to Lewis Westover in A Legacy of Faith: A Family Portrait of Lewis and Eliza Westover and Their Parentage (2003), compiled by Paul Lewis Westover, 110.
• Elizabeth Jane Perkins Belcher in On to the Valley (1957) by Anson G. Perkins.
• Erastus Snow journals, 1835-1851; 1856-1857, 1847 April-December, 1-92.
• Erastus Snow journals, 1835-1851; 1856-1857, 1847 December-1850 September.
• Find a Grave (Website)
• "First 100, report, 1848 June" in Camp of Israel schedules and reports 1845-1849, Brigham Young's 1848 emigration division.
• Heber C. Kimball journal in Heber C. Kimball papers, 1837-1866.
• Howard Egan, Pioneering the West, 1846 to 1878, edited and compiled by William M. Egan (1917), 21-105.
• John Brown reminiscences and journals, 1843-1896, Volume 1, 56-70.
• John H. Tippets autobiography, circa 1882, 99-113.
• Journal History of The Church of Jesus Christ of Latter-day Saints, Supplement after 31 December 1848, 2.
• Lewis Barney autobiography and diary, 1878-1883.
• Millen Atwood journal, 1847 April-July. 
• Missionary Department Missionary Registers, 1860-1959, Volume 1.
• Norton Jacob reminiscence and journal, 1844 May-1852 January, 47-85.
• Pratt, Orson, et. al., to Brigham Young, 8 Aug. 1854, in Brigham Young, Office Files 1832-1878, reel 54, box 41, fd. 2.
• Thomas Bullock journals, 1843-1849, Journal, 1847 April-June.
• Wilford Woodruff journal, 1847 January-1853 December, 25-77.
• William A. Empey, "The Journal of William A. Empey, May 7-August 4, 1847," edited by Dale L. Morgan, Annals of Wyoming (July-October 1949), 124-33.
• William Burton papers, circa 1837-1851, Journal, Volume 11, 1848 June-July.
• William Clayton diaries, 1846-1853, Folder contents: (2) Volume 2, 1847.