Subjects
- Civil defense -- Great Britain.1
- Civil defense -- Illinois -- Chicago.1
- Civil defense.1
- Civil rights -- United States.1
- Civil service -- Michigan.1
- Civil service.1
- Communism.1
- Conscientious objectors.1
- Conservation of natural resources -- Michigan.1
- Construction -- Michigan -- Mackinac Island.1
- Consumer protection -- Michigan.1
- Copper mining -- Michigan.1
- Costumes.1
- Crime.1
- Crowds.1
- Demography.1
- Demonstrations.1
- Depressions -- 1929 -- Michigan -- Detroit.1
- Discrimination in education -- Law and legislation -- United States.1
- Discrimination in housing -- Michigan.1