- Holman, A. T.3
- Arnold, E. V.1
- Battle, H. B. (Herbert Bemerton), 1862-19291
- Bennett, R. R. (Roy R.)1
- Blair, E. C. (Enos Clarkson), 1892-19751
- Blalock, T. L.1
- Carpenter, F. B., 1864-1
- Fertilizer Manufacturers' Association1
- Hawks, S. N. (Stirling Norman)1
- Jeter, F. H. (Frank Hamilton), 1891-19551
- Killebrew, J. B.1
- News & Observer (Raleigh, N.C.)1
- North Carolina Cooperative Extension Service1
- Ritchie, Ray M., Jr.1