- Birth Date
- 3 July 1821
- Death Date
- 12 August 1899
William Arridus King
William was part of the 9th Company of Ten led by Heber C Kimball. His death record is found in Milwaukee, Wisconsin, death register. There is also biographical information in History of Paris, Maine, from Its Settlement to 1880 . Birth date confirmed by Nauvoo Temple Endowment Register.
- Age at Departure: 25
- Bullock, Thomas, Journals 1843-1849, vol. 4.
- Clayton, William, Diary, 1847 January-December.
- Egan, Howard, Pioneering the West, 1846 to 1878, ed. and comp. William M. Egan  21-105.
- Kimball, Heber C., Journal, in Papers 1837-1866.
- Nauvoo Temple Endowment Register.
- Rockwood, Albert Perry, Diary, 1847 April-July.