- Graeber, R. W. (Robert Walter), 1888-196713
- North Carolina State University. Department of 4-H Youth Development11
- North Carolina State College. School of Forestry9
- Fox, John W.5
- North Carolina Cooperative Extension Service4
- North Carolina State University. College of Forest Resources4
- Eagles, J.F.2
- Middleton, Gordon K. (Gordon Kennedy), 1895-19862
- Piedmont Experiment Station (Salisbury, N.C.)2
- Chapman, W. H.1
- Kime, P. H. (Paul Hanner), 1893-19611
- Mattoon, Wilbur R.1
- Morrison, W. E.1
- Morrison, Walter1
- North Carolina Agricultural Experiment Station1
- North Carolina Crop Improvement Association1
- North Carolina State Fair1
- North Carolina State University -- Faculty1
- United States. Bureau of Forestry1