Presbyterian Church in the U.S.A. Board of Foreign Missions--Archives., Presbyterian Church in the U.S.A. Korea Mission., Lyon, William Barclay., Lyon, Ruth Lorene
United Presbyterian Church in the U.S.A. Commission on Ecumenical Mission and Relations Photographs, c. 1850-1972.--https://www.history.pcusa.org/collections/research-tools/guides-archival-collections/rg-223