Defense industry Women 10 Employment 8 War rallies 7 World War, 1939-1945 6 Economic & industrial aspects 5 Strikes 5 more ... Aircraft industry 4 Vocational education 4 War work 4 Boat & ship industry 3 Machinery 3 Ordnance industry 3 Welding 3 Aeronautics 2 Armories 2 Bombs 2 Chemical industry 2 Electrical apparatus industry 2 Employee fringe benefits 2 Industrial buildings 2 Lathes 2 Leather industry 2 Machinery industry 2 Parades & processions 2 Radio industry 2 Railroad car industry 2 Steel industry strikes 2 Adult education 1 Air bases 1 Air pilots 1 Air raid drills 1 Aircraft 1 Armored vehicle industry 1 Arms & armament 1 Assembly-line methods 1 Athletes 1 Automobile industry 1 Baking 1 Boat & ship industry strikes 1 less ...