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- Universities and colleges--Faculty 11
- Agriculture 7
- Oregon State University. Extension Service 5
- Barley 4
- Food industry and trade 4
- Laboratories 4
- Beans 3
- Food processing plants 3
- Butts, Joseph Shirey 2
- Irrigation 2
- Rivers--Oregon 2
- Water--Pollution 2
- Calvert, Leonard 1
- Chemistry 1
- Chemistry 1
- College buildings 1
- College presidents 1
- Cowan, J. Ritchie (John Ritchie) 1
- Fisheries 1
- Floods 1