- Birth Date
- 26 October 1805
- Death Date
- 11 March 1890
His family's travel to Utah is mentioned in his daughter's obituary.
William was rebaptized in Salt Lake City on 9 February 1848.
- Age at Departure: 41
- Head of Household
- 1850 Utah Census.
- "A Pioneer Woman Dead. Mrs. Agnes Thompson Park Borrowman, at Nephi," The Daily Tribune , 7 Aug. 1898, 7.
- Journal History of The Church of Jesus Christ of Latter-day Saints, 21 June 1847, 20.
- "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.
- Salt Lake Stake Record of Members, 1848-1917.
- "William D. Park Dead," Deseret News , 14 Dec. 1905, 11.