- United States. Navy.13
- Airships.12
- United States Postal Service.12
- Crowds.11
- Speeches, addresses, etc.11
- Speeches, addresses, etc., American.11
- Airplanes.10
- Great Britain. Army.10
- Roosevelt, Franklin D. (Franklin Delano), 1882-1945.10
- Air pilots.9
- Formation flying.9
- Marching drills.9
- Military ceremonies, honors, and salutes--United States.9
- Naval art and science.9
- United States Army.9
- United States Military Academy.9
- Air mail service.8
- Antiaircraft artillery.8
- Military maneuvers.8
- Roosevelt, Eleanor, 1884-1962.8