Photocopies of handwritten diaries. Bennion writes about his life in the Taylorsville area of Utah and in Rush Valley and Long Valley, Utah. He also lived for a time in Nevada. Bennion was married polygamously, participated in the Utah War of 1857-1858, had an encounter with an Indian in 1858, saw the first handcart company arrive in Salt Lake City in 1856, served on a mission to England for the Church of Jesus Christ of Latter-day Saints, and participated in many other activities.

Photocopies of handwritten letters written from Nauvoo, Illinois. Bennion writes to family members concerning plans of his parents to migrate to the United States from England, the need for a strong family organization, and the economic and social conditions in Nauvoo.