United Presbyterian Church in the U.S.A. Commission on Ecumenical Mission and Relations., United Presbyterian Church in the U.S.A. Commission on Ecumenical Mission and Relations--Archives.
United Presbyterian Church in the U.S.A. Commission on Ecumenical Mission and Relations Photographs, ca. 1850-1972.--http://www.history.pcusa.org/collections/research-tools/guides-archival-collections/rg-223