The papers include correspondence, copies of his published writings, unpublished manuscripts, a large collection of handwritten sermon notes, and drafts of both his history of Quakerism and his autobiography.

The Leonard S. Kenworthy Papers includes correspondence and drafts of writings reflecting Leonard Kenworthy's career.

The Stinetorf Collection consists of five scrapbooks assembled by Stinetorf, containing correspondence with publishers, editors, and agents, fan mail, contrasts, reviews, and other material dealing with her writings, along with a number of book an short story manuscripts. Also included are copies of many of her short stories and poems. There are a few photographs, apparently taken for publicity purposes in the 1950s. The earliest material dates from 1940, the latest from about 1966.

The collection includes journals of her sermons (primarily from the 1960s and 1970s), personal diaries, scrapbooks from her travels to Colorado and England, family photographs, travel journals from missionary work, correspondence primarily pertaining to her work as a minister, and several original holiday plays written by Osborn. Also included in the collection is a subsection of material gathered by Jody Richmond who planned to write a biography of Osborn that never came to fruition.

The Thomas E. and Esther B. Jones Collection consists of personal papers of Thomas E. Jones, the president of Fisk University from 1926 to 1946 and Earlham College from 1946 to 1958, and his wife Esther (Balderston) Jones, a missionary teacher in Japan.  It contains significant material on Quaker work in Japan, race relations, Earlham College, and Quaker affairs in the twentieth century.

The collection contains writings by Wilmer Cooper, papers of various Quaker organizations of which Cooper was active, Earlham School of Religion materials, personal correspondence, and some miscellaneous material.