- Born: 9 Feb 1800, Tunbridge, Orange Co., Vermont
- Died: 27 Jun 1844, Carthage Jail, Carthage, Hancock Co., Illinois at age 44
On June 23, 1844, Hyrum and his brother, Joseph Smith, were taken to Carthage to stand trial for inciting a riot. Once the Smiths were in custody, the charges were increased to treason against Illinois.
On June 27, 1844, an armed mob with blackened faces stormed Carthage Jail where Joseph and Hyrum were being held. Hyrum, who was trying to hold the door, was killed instantly with a shot to the face. Joseph Smith fired a pepper-box pistol that had been smuggled into the prison, then sprang for the window. He was shot multiple times before falling out the window, crying "Oh Lord my God!" He died shortly after hitting the ground. Smith was buried in Nauvoo. Five men were later tried for his murder, but all were acquitted.
On 2 November 1826, in Manchester, New York, he married Jerusha Barden (1805\endash 1837). They had six children together.
Lovina Smith (16 September 1827 \endash 8 October 1876)
Mary Smith (27 June 1829 \endash 29 May 1832)
John Smith (22 September 1832-6 November 1911)
Hyrum Smith (27 April 1834-21 September 1841)
Jerusha Smith (13 January 1836-27 June 1912)
Sarah Smith (2 October 1837-6 November 1876)
On 24 December 1837, in Kirtland, Ohio, he married Mary Fielding Smith (1801\endash 1852). They had two children.
Joseph F. Smith (13 November 1838 \endash 19 November 1918)
Martha Ann Smith (14 May 1841 \endash 19 October 1923)
In August 1843 he married Mercy Fielding Thompson, widow of Robert B. Thompson and sister to Hyrum's wife Mary, and Catherine Phillips.
Hyrum's descendants have played significant roles in the history of The Church of Jesus Christ of Latter-day Saints. Joseph F. Smith, his son by Mary Fielding Smith, served as president of the LDS Church between 1901 and 1918. His grandson, Joseph Fielding Smith also served as president of the church between 1970 and 1972. His eldest son, John Smith, served as Presiding Patriarch of the church between 1855 and 1911, and John Smith's descendants held this post from 1912 to 1932 and from 1942 to 1979, when the office was effectively discontinued and the incumbent, Eldred G. Smith, was given the title patriarch emeritus. M. Russell Ballard, a current member of the Quorum of the Twelve Apostles of the LDS Church, is also a direct descendant of Hyrum Smith.