United Presbyterian Church in the U.S.A. Commission on Ecumenical Mission and Relations. Secretaries Files: Korea Mission, 1903-1972.--http://www.history.pcusa.org/collections/research-tools/guides-archival-collections/rg-140
United Presbyterian Church in the U.S.A. Commission on Ecumenical Mission and Relations. Secretaries Files: Korea Mission, 1903-1972.--http://www.history.pcusa.org/collections/research-tools/guides-archival-collections/rg-140