Contains the research material, notes, photographs, and other material of Berrett, including research on Mormon Trail history, history of the Church of Jesus Christ of Latter-day Saints, and scrapbooks of tours conducted by LaMar C. Berrett. Dates range from 1931-2007.

Contains notes on lectures, talks, and other material related to Berrett's research and classes taught at Brigham Young University. Dates range from 1948-2002.

Contains tour journals, scrapbooks, and other material from tours that Berrett was associated with that went to Jerusalem, Europe, Book of Mormon sites, and Mormon history sites. Many of the tours were done through Brigham Young University. Dates range from 1961-1999.

Contains research, rough drafts, and other material relating to Berrett's publications, including "Sacred Events, Sacred Places." Dates range from 1961-1999.

Contains the research of Berrett on Mormon history and various topics. The material includes hand-written notes of Berrett and various published and unpublished writings of Berrett and other authors regarding Mormon history. Dates range from 1931-2007.