Subjects
- Presidents -- United States -- Election -- 1968.1
- Presidents -- United States -- Election -- 1972.1
- Prisons -- Michigan.1
- Prohibition -- Michigan.1
- Public lands -- United States.1
- Public schools -- Michigan -- Ann Arbor.1
- Quarrying.1
- Radio broadcasting -- Michigan -- Detroit.1
- Railroad cars.1
- Railroad stations.1
- Railroads -- Michigan -- Washtenaw County.1
- Reformatories -- Michigan.1
- Refugees, Jewish.1
- Religious services.1
- Restaurants -- Michigan -- Detroit.1
- Roads -- Michigan.1
- Rubber industry and trade -- United States.1
- Rubber industry.1
- Rural schools.1
- Schools -- Michigan -- Detroit.1