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- Universities and colleges--Faculty 6
- Hens 3
- Knowlton, Frank L. (Frank Lester), 1894-1940 3
- Oregon Agricultural College. Experiment Station 3
- Poultry 3
- Foote, Wilson H. 2
- Besse, Ralph S. (Ralph Stephen), 1887- 1
- Crop and Soil Science 1
- Henderson, Robert W. (Robert Wesley), 1914-2006 1
- Hill, D. D. (Donald David), 1894- 1
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- black-and-white photographs 6
- photographic prints 6
- photographs 6
Region
- Oregon >> United States 6