Subjects
- Presidents -- United States -- Election -- 1928.1
- Presidents -- United States -- Election -- 1932.1
- Presidents -- United States -- Election -- 1936.1
- Presidents -- United States -- Election -- 1968.1
- Printing industry.1
- Prison riots.1
- Prisons -- Michigan.1
- Radio broadcasting -- Michigan -- Detroit.1
- Recreation.1
- Religious services.1
- Revivals.1
- Rice -- Japan.1
- Rightwing movements.1
- Riots.1
- Ships -- Great Lakes.1
- Sit-down strikes -- Michigan -- Flint.1
- Street-railroads -- United States.1
- Strikes and lockouts -- Michigan.1
- Strikes.1
- Tanks (Military science)1