- Birth Date
- 12 May 1862
- Death Date
- 2 December 1921
David sailed with his family to the United States on the ship Emerald Isle, also known as the Berendina Oriria. The Allen family is listed with the surname "Holland" on Captain Mumford's lists.
- Age at Departure: 6
- 1870 Utah Census.
- Captain E. T. Mumford, list of passengers, 1868.
- "Names of Passengers in Captain Mumford's Train," Deseret News, 23 September 1868, 1.
- Perpetual Emigrating Fund, Financial Accounts 1849-1886, Ledger D, p. 2.
- Saints By Sea: Latter-day Saint Immigration to America
- Utah Death Certificate Index, 1905-1967.