Source: J. Gustav White, Educational Activities for War Prisoners. Geneva, Switzerland: Educational Department War Prisoners' Aid, 1917. Armed Services Records Box 54, Folder: “Educational Activities for War Prisoners-J. Gustav White, Undated,” Kautz Family YMCA Archives, University of Minnesota, Minneapolis, MN.
Pursuit of an "Unparalleled Opportunity": The American YMCA and Prisoner of War Diplomacy among the Central Power Nations during World War I, 1914-1923