Topic
- Family23
- Automobile industry workers20
- Civil rights movements20
- Labor movement20
- Political activity20
- Knowledge and learning18
- Legal status, laws, etc16
- Employment14
- Social aspects14
- African Americans12
- Career in automobile industry and trade12
- Design and construction12
- Emigration and immigration12
- Industrial relations12
- Military policy12
- Participation, Female12
- Race relations12
- Officials and employees11
- Automobiles10
- Buildings10