- Agricultural extension work7,801
- College students7,071
- Universities and colleges3,476
- Home demonstration work3,380
- 4-H clubs2,188
- African American agricultural extension workers2,006
- Amateur radio stations1,820
- Forestry laboratories1,477
- Agricultural extension workers1,404
- Nuclear reactors1,265
- African American women901
- 4-H clubs -- Periodicals673
- Animal protection650
- African American home demonstration workers617
- Alumni and alumnae579
- Animal welfare522
- College trustees433
- Agricultural education388
- Agriculture -- Research385
- Loblolly pine (Pinus taeda)383