- Birth Date
- 7 November 1816
- Death Date
- 28 August 1901
George Sheffer Clark
George was re-baptized 7 August 1847 in the Salt Lake Valley.
- Age at Departure: 30
- Age at Departure: 41
- Returning Missionary
- Head of Household
- Age at Departure: 33
- 1850 Utah Census, Utah County.
- 1856 Utah census, Utah County.
- Book of the Pioneers, Book 1, p. 154.
- Clark, George Sheffer, Biographical sketch.
- Find a Grave (Website)
- "George Clark Dead," Ogden Standard Examiner, 27 Aug. 1901, 2.
- "George S. Clark Called Home," Deseret Evening News , 29 Aug. 1901, 1.
- Iowa, Select Marriages Index, 1758-1996.
- Missionary Department Missionary Registers, 1860-1959, Volume 1.
- Mitchell, Frederick Augustus Herman Frank, Journals, 1856-1858 and 1899.
- "Registry of Names of Persons Residing in the Various Wards as to Bishops' Reports, Great Salt Lake City, Dec. 28th, A.D. 1852." In Wright, Norman Edgar, ed., Key to Migration Sources Great Britain and North America.
- Ricketts, Norma Baldwin, The Mormon Battalion: U.S. Army of the West, 1846-1848 , , 244-45.
- Ricketts, Norma Baldwin, The Mormon Battalion: U.S. Army of the West, 1846-1848, , 23.
- Salt Lake Stake Record of Members, 1848-1917.
- Utah, Territorial Militia Records, 1849-1877.
- Utah State History Cemeteries and Burials Database.