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Subject
- Labor unions3
- Prohibition2
- United States2
- Bakery and Confectionery Workers' International Union of America1
- Bakery employees1
- Constitutional law1
- Economic aspects1
- Economics1
- Employees1
- International Association of Machinsts1
- International Brotherhood of Railway Track Foremen of America1
- Machinists1
- Political aspects1
- Railroads1
- Social sciences1
- Supervisors, Industrial1