Diary written by Smith of his mission travels in Ohio. The book is covered in an oil-cloth binding with a hand-painted floral design. The tradition of the Smith family is that this cover was made by Hyrum's mother, Lucy Mack Smith. Dated 1831-1835.

Materials relate mission to the east with his brother, William. Dated 1832-1833.

The day book relates mission to the east with Jared Carter, and includes lists and financial notes. Various names are listed throughout the book, with an amount in dollars written next to each name, then underlined the width of the page. Some entries are crossed out, apparently after being paid or reclaimed. Dated May-August 1835.

The book relates commencement of mission to the South with Jared Carter, February 24, 1835; mission to eastern states to collect funds for Kirtland Temple, August-September 1835; and, miscellaneous dated notes. Dated 1835-1838.

Writings in a journal by a later hand than Hyrum Smith's. The majority of the entries in the volume appear to be psalms or poetry of some sort, while some entries on the back page contain names. Dated approximately 1844.

Letter written by Smith from Liberty Jail, this two page letter contains advice to "Sister Grinnels" and Hyrum Smith's children. "Sister Grinnels" is likely Hannah Grinnels, a woman who lived with Hyrum's family to help care for the children, The signature at the bottom of the letter has been clipped away. Dated March 16, 1839. Also includes a one page letter written by Cleone Smith Isom on August 24, 1985 clarifying the identity of those mentioned in the letter.

Letter to Smith from his cousin, William Sanford, of Springfield, Illinois. Mentions surprise at having received a letter from a relative, his stay in Illinois, and his desire to visit "your city" (Nauvoo). Dated July 25, 1842.

Letter contains Smith's response to a letter from Owen, who appears to be a candidate for state House of Representatives. Hyrum mentions the feelings of the community and himself toward current candidates running for the House, and other matters related to politics at the time. Dated June 4, 1844.

Map shows an addition to the existing city of Nauvoo, Illinois. It was surveyed by J. Wilson Williams on January 7, 1841. It shows Wells, Bluff, and Back streets vertically on the map. The map is two sided, with the map on one side and a note relating to filing of the claim on the other. Dated January 23, 1841.