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- Universities and colleges--Faculty 16
- Hoffman, Neil 11
- Oregon State University. Extension Service 11
- Corn 7
- Croplands 7
- College buildings 4
- Onions 4
- Treasure Valley Community College (Ontario, Or.) 4
- Cattle 3
- Soybean 3
- Ontario (Or.) 2
- Agricultural exhibitions 1
- Chinese Americans 1
- Concrete 1
- Courthouses--Oregon 1
- Exhumation 1
- Hay 1
- Henderson, Robert W. (Robert Wesley), 1914-2006 1
- Irrigation--Equipment and supplies 1
- Oregon State University. Agricultural Experiment Station 1