- Law enforcement--United States--History--20th century.1
- Le Bourget (Airport : Le Bourget, France)1
- Lebrun, Albert, 1871-1950.2
- Levine, Charles A.2
- Lexington Class (Aircraft carriers)1
- Lindbergh, Anne Morrow, 1906-2001.4
- Lindbergh, Charles A. (Charles Augustus), 1902-1974--Press coverage.1
- Lindbergh, Charles A. (Charles Augustus), 1902-1974--Public appearances--Missouri--Saint Louis.1
- Lindbergh, Charles A. (Charles Augustus), 1902-1974.7
- Lindbergh, Charles Augustus, 1930-1932.1
- Lindbergh, Evangeline Lodge Land.2
- Lions as pets.1
- Lockheed Aircraft Corporation.3
- Lockheed Corporation.1
- Lockheed aircraft.4
- Locomotives.1
- London (England)--Description and travel.1
- Los Angeles (Airship)1
- Los Angeles International Airport--History.1
- Luggage.1