Fonds consists of correspondence, certificates, notes, photographs, printed materials, publications, diaries, minutes, financial materials, reports, the text of speeches, and manuscripts pertaining to Harry T. Logan and other members of the Logan Family. Fonds includes the diaries of John A. Logan, a pastor and Harry Logan's father. Fonds also includes Gwyneth Logan's work on the genealogy of the Logan family, as well as memorabilia from her university days and letters of condolence which she received on the death of Professor Logan.