The Bennion family papers (1844-1949) include the diaries of John Bennion (1820-1877), Heber Bennion (1858-1932), and Mary Bennion Powell (born 1890), as well as family correspondence and autobiographical sketches. John and Samuel Bennion and John's son, Heber, were Utah sheep ranchers and polygamists, while Mary Bennion Powell was a daughter of Heber Bennion.

The Deseret Live Stock Company records (1886-1958) consist of legal documents, financial papers, correspondence, subject files, minutes, and other materials. The Deseret Live Stock Company was formed in 1891 by several northern Utah sheep ranchers to promote "stock raising, slaughtering, butchering, mercantile business, and other commercial enterprises in the Territory of Utah and other states in the U.S."