An older brother and faithful associate of Joseph Smith. Hyrum was born 9 February 1800. He served as an assistant to Joseph in the Church presidency, as well as being the second Patriarch to the Church. On 27 June 1844, he became a fellow martyr with Joseph in Carthage Jail.

God revealed instructions to Hyrum through his brother Joseph, D&C 11; 23: 3. Blessed is my servant Hyrum Smith because of the integrity of his heart, D&C 124: 15. Hyrum was commanded to take the office of Church patriarch, D&C 124: 91-96, 124. Joseph and Hyrum were martyred in Carthage Jail, D&C 135. Hyrum and other choice spirits were reserved to come forth in the fulness of times, D&C 138: 53.