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- Universities and colleges--Faculty 27
- Agricultural exhibitions 19
- Oregon State University. Extension Service 18
- Binder, Julius Floyd 14
- Cattle 11
- Junior high school students 9
- Food industry and trade--Employees 8
- Central Oregon Agricultural Research Center 7
- Johnson, M. J. (Malcolm Julius) 7
- French, Giles 4
- Potatoes 4
- Rudd, Oris Clark 4
- Universities and colleges--Employees 4
- Agricultural machinery 3
- Auctioneers 3
- High school students 3
- Long, R. A. (Reub A.) 3
- 4-H clubs 2
- Aberdeen-Angus cattle 2
- Agricultural Chemistry 2