Topic
- Military uniforms37
- Presidents' spouses32
- Portraits30
- Political campaigns28
- Organizations26
- Automobile industry workers24
- Demonstrations24
- Labor union members24
- Strikes and lockouts24
- Speeches, addresses, etc.23
- Automobile racing drivers22
- Buildings22
- General Motors Strike20
- Labor union meetings20
- Officials and employees20
- Soldiers20
- United Farm Workers of America20
- Governors17
- Civil rights leaders16
- Signs and signboards16