- Congress of Industrial Organizations (U.S.)1,364
- AFL-CIO. Civil Rights Department1,337
- Labor leaders1,294
- Labor movement1,264
- Civil rights1,232
- African American women social reformers1,213
- Dwellings1,213
- Sermons1,181
- Voting1,143
- Pro-life movement1,136
- Demonstration1,127
- Children1,118
- African American arts1,113
- Elections1,091
- Voter registration1,051
- Strikes and lockouts1,049
- Airlines999
- Coal mine accidents989
- Football players974
- Presidents971
