Subjects
- Politicians -- Michigan.1
- Postal service.1
- Printing industry.1
- Prison facilities -- Michigan -- Jackson.1
- Project Telstar.1
- Public utilities -- Valuation.1
- Public welfare -- Michigan.1
- Publicity.1
- Racquets (Game)1
- Radioisotopes.1
- Railroad cars.1
- Railroads -- Michigan.1
- Railroads -- Valuation.1
- Refugees -- Michigan.1
- Research.1
- Retirement.1
- Riots -- Michigan -- Detroit -- History -- 20th century.1
- Riots.1
- Rubber industry and trade -- United States.1
- Rubber industry.1