- R.J. Reynolds Tobacco Company✖[remove]7
- North Carolina State University. Department of Biological and Agricultural Engineering4
- Johnson, William H.2
- North Carolina State University -- Administration2
- North Carolina State University. College of Agriculture and Life Sciences2
- American Society of Agricultural Engineers1
- Campbell, John S.1
- Hart, C. William1
- Howell, Ezra L.1
- Imperial Tobacco Company of Great Britain and Ireland1
- James, H. Brooks (Herman Brooks), 1912-19731
- John Player & Sons1
- Lambert, Andrew J.1
- Legates, J. E.1
- North Carolina Agricultural Experiment Station1
- North Carolina Agricultural Extension Service1
- North Carolina State University -- Faculty1
- Smith, Easley S.1
- Splinter, William E.1
- Standard Commercial Tobacco Co, Inc.1