- Congress of Industrial Organizations (U.S.)1,364
- AFL-CIO. Civil Rights Department1,337
- Labor leaders1,294
- Labor movement1,264
- African American women social reformers1,213
- Dwellings1,213
- Sermons1,181
- Pro-life movement1,136
- Demonstration1,127
- Voting1,124
- Children1,111
- Elections1,083
- African American arts1,060
- Strikes and lockouts1,049
- Voter registration1,035
- Airlines998
- Coal mine accidents989
- Football players973
- Civil rights970
- Presidents965
