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.

The Samuel George Ziegler collection contains largely materials on missionaries and overseas experiences in Sierra Leone, Puerto Rico, China, the Philippines, and Japan of the United Brethren Church from 1752 to 1966. Seeing as Reverend Ziegler was the Associate Secretary of the Division of World Missions from 1921 to 1958, there are two copies of unpublished works on the History of Overseas Missions of the United Brethren Church, including a final copy, as well annual reports and correspondence. Two maps are included in this collection, one of China and one of the Philippine Islands. Missionary personal accounts are comprised in the collection, in addition to photographs of thirty-seven missionaries abroad.

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.