The John Henry Gibbs Collection deals mainly with Gibbs' mission. The collection is organized into the following categories: genealogical information, journals, notebooks and miscellaneous items, letters, personal history of Louisa Gibbs, articles written about the Tennessee Massacre and books owned by Gibbs.

Handwritten missionary journals and typescripts. The items describe Robison's experiences while serving in the Southern States Mission of the Mormon Church. In particular the journal relates information about the slaying of John H. Gibbs and William S. Berry, two Mormon missionaries in the mission; the subsequent investigation of the slayings by Robison and his mission president B.H. Roberts; as well as other stories of persecution towards Mormons.