Record types include: correspondence, photocopies, handwritten transcripts, publications, photographs, financial records and contracts. This is the only known extent collection of Bishop Otterbein' s papers in the Western Hemisphere. The collection contains autographs and his ministerial credentials.

This collection is made up of records of the various agencies of the church. It also includes material regarding local churches and annual conferences. The collection is made up of fourteen series. The four largest series which make up the bulk of the collection are the Woman's Missionary Society, Missionary Society, Annual Conferences, and Sunday School and Tract Union.

This collection is made up of records of the various agencies of the church. It also includes material regarding local churches and annual conferences. The collection is made up of thirteen series. The three largest series which make up the bulk of the collection are the Missionary Society, the Woman's Missionary Society, and the Board of Christian Education.