Prisoners of war.

Papers of K. Brooke Anderson documenting his relief work in the Middle East, first with YMCA prisoner of war work and later representing other church organizations with refugees in the Gaza Strip.

Records of YMCA work in Russia and the Soviet Union consisting primarily of correspondence among YMCA secretaries working in Russia, as well as correspondence and reports to YMCA leaders in the Unites States on matters relating to programs, relations with the Orthodox Church, finances, membership recruitment, and work with World War I soldiers and prisoners of war.

Photographs, correspondence, and other materials documenting Walter Teeuwissen and his experiences as a YMCA secretary working with prisoners of war in Siberia in 1919 to 1920.

Reports, correspondence, and other records of the World Alliance of YMCAs, a confederation of the national councils of YMCAs from around the world.

Minutes, correspondence, publicity bulletins, training manuals, reports, newspapers, and other records of major YMCA administrative bodies which provided services to the military forces in the United States and abroad during World War I..

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.

Photo albums, scrapbooks, and photographs documenting YMCA work with the United States Armed Forces, primarily documenting World War I and World War II. The scrapbooks contain some photographs and ephemera, but contain mostly newspaper clippings.

Lantern slides and lantern slide shows or lectures compiled by the YMCA, for educational or entertainment use, depicting YMCA activities, mainly in the areas of international (foreign) work and armed services work during World War I.