- Weaver, David S. (David Stathem), 1896-1966✖[remove]39
- North Carolina State University -- Research8
- North Carolina State University. Department of Biological and Agricultural Engineering8
- North Carolina Agricultural Extension Service2
- The Progressive farmer2
- Barlow, Frank D. (Frank Downer), Jr., 1916-1
- Brady, Daniel E.1
- Ellis, H. M.1
- Forster, G. W.1
- James, H. Brooks (Herman Brooks), 1912-19731
- North Carolina Cooperative Extension Service1
- North Carolina State College1
- North Carolina State College. Department of Agricultural Engineering1
- Poe, Clarence Hamilton1
- Schaub, I. O.1
- United States. Department of Agriculture1
- United States. Extension Service1