Esplin, Ronald K. “The Emergence of Brigham Young and the Twelve to Mormon Leadership, 1830–1841.” PhD diss., Brigham Young University, 1981. Also available as The Emergence of Brigham Young and the Twelve to Mormon Leadership, 1830–1841, Dissertations in Latter-day Saint History (Provo, UT: Joseph Fielding Smith Institute for Latter-day Saint History; BYU Studies, 2006).
Kimball, Heber C. Collection, 1837–1898. CHL. MS 12476.
Elders’ Journal of the Church of Latter Day Saints. Kirtland, OH, Oct.–Nov. 1837; Far West, MO, July–Aug. 1838.
Historian’s Office. Histories of the Twelve, 1856–1858, 1861. CHL. CR 100 93.