- Birth Date
- 14 May 1846
- Death Date
- 19 March 1917
William Wesley, Jr. Willis
His birth and death dates are confirmed by the inscription on his gravestone and his death date is also confirmed by his death certificate.
- Age at Departure: 1
- Arizona Death Certificate.
- Black, Susan Easton. Membership of the Church of Jesus Christ of Latter-day Saints: 1830-1848 (Provo, UT: Brigham Young University, [1984-1988]).
- Camp of Israel schedules and reports, 1845-1849.
- Find a Grave
- George Benjamin Wallace Emigrating Company journal, 1847 June-September.
- McDonald, Jacqueline, e-mail communication, 29 May 2003
- William Wesley Willis, Biographical sketches, 1891-2013.