Topic
- Transportation Facilities; Bridges; Aqueducts3
- Americans2
- Appointment and selection2
- Appropriations and expenditures2
- Automobile industry workers2
- Bombardment2
- Bombing, Aerial2
- Buildings2
- Business travel2
- Career in automobile industry and trade2
- Casualties2
- Causes2
- Childhood and youth2
- Cities (general views, etc.); City Maps; City Plans (drawings); Models (representations)2
- Civilian war casualties2
- Clemency2
- Combined operations (Military science)2
- Commerce2
- Economic assistance, American2
- Economic development2