- Fox, William R.1
- J. G. Van Holten and Sons, Inc. (Waterloo, Wisconsin)1
- Jones, Ed1
- Leary, Samuel L. (Samuel Linton), 1863-19131
- Lockwood Grader Corporation1
- Mattox, John D.1
- Mills, Ralph1
- Mt. Olive Pickle Company, Inc.1
- National Institute for Medical Research1
- National Institute of Agricultural Engineering (Great Britain)1
- New York State College of Agriculture. Dept. of Agricultural Engineering1
- North Carolina State College. School of Agriculture1
- North Carolina State College. School of Forestry1
- North Carolina State University -- Faculty1
- North Carolina State University. Visual Aids Department1
- Reynolds, Hal1
- Sasser, Ralph1
- Taylor, J.C.1
- Universal Leaf Tobacco Co.1
- University of Maine at Orono. Dept. of Agricultural & Resources Economics1