The Lawrence Foster papers (1980-1983) consist of two articles by Foster on the LDS Church: "Career Apostates: Reflection on the Life and Work of Jerald and Sandra Tanner," and "A Personal Odyssey: My Encounter with Mormon History." Includes correspondence related to research activities. Foster was a professor and author.

The Mormon historians and historiography collection (1981-1984) consists of copies of articles written by LDS historians debating whether or not written LDS history should be "faith-promoting" or "objective."

The Mormon History Association (MHA) records (1971-2001) consist of newsletters published by the MHA and a conference handbook. The MHA is a historical association which focuses on the LDS experience.

The William Mulder papers (1918-2008) consist of his correspondence, articles, original manuscripts, and early diaries.

The William Mulder photograph collection consists of his personal materials related to family and clubs to which he belonged.