Other
Employment
Railroad employees
2
Railroad stations
Women
2
African Americans
1
Athletes
1
Buses
1
Civil rights
1
Grain elevators
1
Labor unions
1
Local transit
1
Machinery
1
Marine terminals
1
Music ensembles
1
Passengers
1
Pickets
1
Picnicking
1
Power plants
1
Railroad freight cars
1
Railroad tracks
1
Salvage
1
Vocational education
1
Wrecking
1