Cornelia A. Condict was a Presbyterian missionary and Corresponding Secretary for the Woman's Synodical Society for Foreign Missions in New Jersey. The collection contains manuscript diaries written while Condict was living in Richmond, Virginia, and while traveling in Japan, Korea, China, Singapore, and India, with contents chiefly related to mission work.

This collection contains correspondence, financial records, founding documents, minutes, reports, and other resource material relating to the Eastern Fellowship of Professors of Missions, established to promote fellowship, spiritual life, and professional usefulness of members.

This collection contains records from an international ecumenical conference of Protestant missionaries held in New York City, April 21 – May 1, 1900, which provided a forum for missionaries to discuss topics including geographical surveys of missionary work, medicine, education, evangelism, literature, and women's work. Materials include conference program and register, minutes, stenographic reports, presented papers and reports, and a special issue of The New York Tribune.

International Missionary Council was established in 1921. It linked missionary councils to discuss issues such as the missionary obligation of the church, theological education, and the ecumenical movement. Associated with the World Council of Churches in 1939, in 1961, it was integrated with WCC as its Commission on World Mission and Evangelism. Collection contains documents, correspondence, pamphlets and photographs relating to the formation and development of the organization.

Important subjects in this collection include: child development and parent education; public health; interracial relations; general education; foreign and home missions; emergency relief in time of natural disaster and war; development of social sciences - both practically and theoretically; and social welfare.

This collection contains materials for missionary personnel compiled by the Missionary Research Library, including studies on preparation, recruitment, psychological testing and turnover of missionary personnel, as well as handbooks and instruction manuals for missionaries.

This collection contains materials compiled by the Missionary Research Library that document foreign mission work in the Near/Middle East during the early 20th century, including reports, pamphlets, minutes, clippings and publications, and educational records pertaining to the Near East School of Theology (transcribed by the Syria-Palestine Translation Service) and Robert College in Constantinople.

The collection consists of administrative records, correspondence, newsletters and papers, 1950 - 1973 from Administration, Foreign Missions, Faith and Order, International Relations, and Ecumenical Relations divisions of the National Council.

This collection contains copies of handwritten and typed reports, in German, from the Rheinische Missionsgesellschaft (Rhenish Missionary Society) missionaries located in Southern Africa, Borneo, Sumatra, Nias and New Guinea.