Title: World War II radio heroes
Subjects: Correspondence, Radio broadcasting and the war, World War, 1939-1945, History, German Prisoners and prisons, Shortwave radio, Sparr family -- Correspondence, World War, 1939-1945 -- Radio broadcasting and the war, World War, 1939-1945 -- Prisoners and prisons, German -- Correspondence, Shortwave radio -- History
People: Sparr family