- Watkins, Rupert✖[remove]30
- North Carolina Cooperative Extension Service10
- Ellis, H. M.5
- Glover, John W. (John Womble), 1928-5
- Ferguson, J. C.4
- Ritchie, Ray M., Jr.4
- Driggers, L. Bynum2
- American Society of Agricultural Engineers1
- Beasley, Eustace O. (Eustace Orland)1
- Hassler, Francis J.1
- Henson, Wiley H., Jr.1
- Johnson, William H.1
- North Carolina Agricultural Experiment Station1
- North Carolina State College. Department of Agricultural Engineering1
- Toussaint, W. D. (William Douglas)1