Academy of Music (Philadelphia, Pa.) 1 Artists--United States 1 Canteens (Establishments) 1 Centennial Exhibition (1876 : Philadelphia, Pa.) 1 German Americans--Cultural assimilation--Pennsylvania--Philadelphia 1 German Americans--History--20th century 1 German Americans--Music 1 more ... German Americans--Pennsylvania--Philadelphia--Ethnic identity 1 German Americans--Pennsylvania--Philadelphia--Newspapers 1 Recreation centers 1 World War, 1939-1945 1 World War, 1939-1945--Theater and the war 1 less ...