Excerpt from History of the Church, Vol. 4 Pg. 550 (March 15, 1842): ¹

“In the evening I received the first degree in Free Masonry in the Nauvoo Lodge assembled in my general business office”

Excerpt from History of the Church, Vol. 4 Pg. 552 (March 16, 1842): ²

“Wednesday, March 16.—I was with the Masonic Lodge and rose to the sublime degree.”

Excerpt from History of the Church, Vol. 5 Pg. 1,2 (May 4, 1842): ³

“Wednesday, 4.—I spent the day in the upper part of the store, that is in my private office (so called because in that room I keep my sacred writings, translate ancient records, and receive revelations) and in my general business office, or lodge room (that is where the Masonic fraternity meet occasionally, for want of a better place) in council with General James Adams, of Springfield, Patriarch Hyrum Smith, Bishops Newel K. Whitney and George Miller, and President Brigham Young and Elders Heber C. Kimball and Willard Richards, instructing them in the principles and order of the Priesthood, attending to washings, anointings, endowments and the communication of keys pertaining to the Aaronic Priesthood, and so on to the highest order of the Melchisedek Priesthood…”

Duncan’s Masoic Ritual and Monitor, by Malcom C. Duncan, [1866]: ⁴