Other
Defense industry
Economic & industrial aspects
World War, 1939-1945
5
Women
3
Employment
2
Adult education
1
Air bases
1
Air pilots
1
Aircraft
1
Aircraft industry
1
Boat & ship industry
1
Bombs
1
Defense industry strikes
1
Education
1
Electrical apparatus industry
1
Engineering
1
Lathes
1
Machine guns
1
Machine shops
1
Machinery
1
Military parades & ceremonies
1
Naval operations
1
Naval yards & naval stations
1
Ordnance industry
1
Political parades & rallies
1
Railroad freight cars
1
Science
1
Ships
1
Strikes
1
Tanks (Military science)
1
Vocational education
1
War rallies
1
Welding
1
World War, 1914-1918
1