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- Lions as pets.1
- Lockheed Corporation.1
- Monoplanes.1
- Parachutes.1
- Pilots.1
- Propeller-driven aircraft.1
- Propellers.1
- Salt Lake City (Utah)1
- Speeches, addresses, etc., American.1
- Transcontinental flights.1
- Turner, Roscoe, 1895-1970.1
- United States Postal Service.1
- United States. Air Force.1
- United States. Army. Air Corps.1