SCPC became the official repository for the War Resisters League in 1947. War Resisters League records in DG 40 included scattered minutes of the Executive Committee (1925- ), the National Committee (1974- ), and a small amount of scattered financial records. There is correspondence from 1926 forward. War Resisters League literature and releases (1931- ) include fund appeals, flyers, pamphlets, brochures, and memoranda. There are also annual Peace Calendars (1956- ). Numerous War Resisters League periodicals (1942- ), including War Resisters League News, can be found in the SCPC stacks. A list of these periodicals is available in Series B, Subseries III.
There are significant amounts of material documenting War Resisters League's work in publishing The Conscientious Objector, a newspaper produced from 1939 to 1946, the work of the Conscientious Objectors Problems Committee (1940-1946), preparation of the annual Peace Calendar, and the work of the Literature Committee (mostly 1960s) which created peace bibliographies. Records about War Resisters League's civilian defense protest project (1955-1963) and its efforts to help political prisoners in Vietnam following the Indochinese War, are significant parts of this collection.
The administrative files of Executive Secretaries Abe Kaufman, Roy Kepler, and Sidney Aberman span the years 1948 to 1953. Other administrative files are those of Executive Secretary Ralph DiGia (1955-1961), Field Secretary David McReynolds (1960-1977), Chairman Ed Gottlieb (1962-1967), staff member Wendy Schwartz (1970-1971), Special Project Secretary Grace Hedemann (1974-1978), and staff member Ed Hedemann.
War Resisters League correspondents include Sidney Aberman, Devere Allen, Allen H. Barr, R. Boland Brooks, H. Runham Brown, Julius Eichel, Harrop Freeman, Edward P. Gottlieb, Kenneth Greenawalt, George W. Hartmann, Alfred Hassler, Grace Hedemann, Ammon A. Hennacy, John Haynes Holmes, Jessie Wallace Hughan, Abraham Kaufman, Roy Kepler, Frieda Langer Lazarus, David McReynolds, Charles Macintosh, A.J. Muste, Tracy D. Mygatt, Frank Olmstead, Frances Rose Ransom, Bayard Rustin, Igal Roodenko, Winifred W. Schaum, Wendy Schwartz, Evan W. Thomas, Olivia Dunbar Torrence, Lydia G. Wentworth, and Frances Witherspoon.