Subject files comprised of correspondence, reports, minutes, memoranda, and printed material concerning various aspects of YMCA work abroad, especially financial issues, boys' work, and war work.

Correspondence, minutes, reports, financial documents, pamphlets, journal and newspaper articles and other records concerning the YMCA movement in England. Early records include the development of United Kingdom YMCAs. English, Scottish, Welsh and Irish national council reports and yearbooks, reports and other records from local associations, as well as material related to the YMCA's role during World War I and II make up the bulk of this material.

Correspondence, reports, minutes, proposals, magazines, newspaper and journal articles, financial documents, manuals, pamphlets, yearbooks, program catalogs, building plans, histories and images among other records of the North American YMCA’s work with other organizations, including the YWCA, the White House and other government agencies, colleges, community funds, and social welfare, citizenship, peace work, war work, and group work organizations.

Posters, maps, blueprints and other architectural records, artwork, and other oversized paper items.

Records documenting the administration of the YMCA's work with the United States armed services from the era of the Civil War through the late 1980s, particularly during the period from the time of the first world war through the Korean war.

Historical data, correspondence, reports, memoranda, articles, newspapers, pamphlets, photographs, scrapbooks, and other records documenting the YMCA's work serving the armed forces community from the time of the Civil War through the present.

Minutes, reports, yearbooks, correspondence, and other records of the Canadian YMCA, which until 1912, was governed jointly with the (U.S.) American YMCA under the International Committee of the Young Men's Christian Associations, and continued throughout most of the rest of the 20th century to work closely with the U.S. YMCA in conducting foreign work.