Strikes Law enforcement 5 Defense industry 4 Pickets 4 Electrical apparatus industry 3 Employment 3 Fighting 3 more ... Judicial proceedings 3 Tear gas 3 Ash disposal 2 Boat & ship industry 2 Clothing trade 2 Demonstrations 2 Hotels & taverns 2 Labor unions 2 Local transit 2 Newspaper industry 2 Parades & processions 2 Riot control 2 Sabotage 2 Student movements 2 Vigilance committees 2 Violence 2 Wands & injuries 2 Women 2 World War, 1939-1945 2 African Americans 1 Automobile driving 1 Baking 1 Barrooms 1 Blind persons 1 Braille 1 Broom & brush industry 1 Buses 1 Camps 1 Canteens (Wartime, emergency, etc.) 1 Card games 1 Carts & wagons 1 Children 1 Chorus girls 1 less ...