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Subject
- Labor.[remove]46
- Construction workers.8
- Mines and mineral resources.6
- Labor movement.5
- Agriculture.4
- Construction industry.4
- Labor unions--United States.4
- Mine buildings.4
- Miners.4
- New York (N.Y.)--Buildings, structures, etc.4
- Strikes and lockouts.4
- Construction projects.3
- Industry--United States--History.3
- Working class.3
- American Federation of Labor.2
- Chrysler Building (New York, N.Y.)2
- Chrysler Building (New York, N.Y.)--Design and construction.2
- Coal miners.2
- Coal mines and mining.2
- Dams--Design and construction.2