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Subject
- Aeronautical engineers.1
- Aeronautics--United States.1
- Ammunition.1
- Biplanes.1
- Fort Worth (Tex.)--Description and travel.1
- Manufacturing industries.1
- Manufacturing processes.1
- United States. Army.1
- War and society--United States.1
- Women air pilots.1
- Women in aeronautics.1
- World War, 1939-1945--Social aspects--United States.1