Columbia subject headings:
Harvard subject headings:
Air pilots, Military--France--Calvados--History--20th century.
Great Britain. Royal Air Force--Biography.
United States. Air Force--Biography.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Aerial operations, British.
World War, 1939-1945--Underground movements--France.
Princeton subject headings:
Air pilots, Military--France--History--20th century.
Airmen--France--History--20th century.
World War, 1939-1945--Aerial operations, Allied.
World War, 1939-1945--Campaigns--France--Normandy.
World War, 1939-1945--Underground movements--France--Normandy.