JS’s First Visions of Angel Moroni
21–22 September 1823
JS History / Smith, Joseph, et al. History, 1838–1856. Vols. A-1–F-1 (original), A-2–E-2 (fair copy). Historian's Office, History of the Church, 1839–ca. 1882. CHL. CR 100 102, boxes 1–7. The history for the period after 5 Aug. 1838 was composed after the death of Joseph Smith.
Porter, Larry C. “A Study of the Origins of the Church of Jesus Christ of Latter-day Saints in the States of New York and Pennsylvania, 1816–1831.” PhD diss., Brigham Young University, 1971. Also available as A Study of the Origins of the Church of Jesus Christ of Latter-day Saints in the States of New York and Pennsylvania, 1816–1831, Dissertations in Latter-day Saint History (Provo, UT: Joseph Fielding Smith Institute for Latter-day Saint History; BYU Studies, 2000).