- Fox, William R.1
- Guthrie, F. E. (Frank Edwin), 1923-19941
- Hassler, Francis J.1
- Henson, Wiley H., Jr.1
- Hsieh, Ken1
- Imperial Tobacco Group1
- J. G. Van Holten and Sons, Inc. (Waterloo, Wisconsin)1
- Kulash, Walter Michael, 1912-19601
- Leary, Samuel L. (Samuel Linton), 1863-19131
- Lockwood Grader Corporation1
- Lowry, Edward M.1
- Michigan State College. Dept. of Agricultural Engineering1
- Mt. Olive Pickle Company, Inc.1
- National Canners Association1
- National Cotton Council of America1
- National Institute for Medical Research1
- National Institute of Agricultural Engineering (Great Britain)1
- National Research Council (U.S.). Agricultural Board. Committee on Agricultural Equipment1
- New York State College of Agriculture. Dept. of Agricultural Engineering1
- North Carolina Agricultural Extension Service1