United States. War Department. Office of the Chief of Air Service, Corporate Name: United States. War Department. Office of the Chief of Air Service, William Mitchell letter to James M. Beck, dated War Department, Air Service, Office of the Chief, Washington, D.C., 4 November 1921 Mitchell, William,; United States. War Department. Office of the Chief of Air Service,; H.W. Lende, Jr. Manuscript Collection (Smithsonian Libraries). Read more about William Mitchell letter to James M. Beck, dated War Department, Air Service, Office of the Chief, Washington, D.C., 4 November 1921
Corporate Name: United States. War Department. Office of the Chief of Air Service, William Mitchell letter to James M. Beck, dated War Department, Air Service, Office of the Chief, Washington, D.C., 4 November 1921 Mitchell, William,; United States. War Department. Office of the Chief of Air Service,; H.W. Lende, Jr. Manuscript Collection (Smithsonian Libraries). Read more about William Mitchell letter to James M. Beck, dated War Department, Air Service, Office of the Chief, Washington, D.C., 4 November 1921
