Source: Thus Saith the Lord: God Is Love. Cassel, Germany: Furche-Verlag, circa 1915. Armed Services Records Box 55, Folder: “Prisoner of War Pamphlets in Various Languages-ca. 1914–1918,” 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