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Subject
- African American engineers.1
- Engineers.1
- Forecasting.1
- Gibbons, Floyd Phillips, 1887-1939.1
- Hydraulic engineering.1
- Journalism--History.1
- Moses, Robert, 1888-1981.1
- Political campaigns--New York (State)--New York.1
- Politicians--United States.1
- Radio journalists.1
- Radio.1
- Republican Party (U.S. : 1854- )1
- Rockefeller Center.1
- Speeches, addresses, etc., American.1
- Subways--Design and construction.1