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- Harvesting 19
- Agriculture 17
- Portraits, Group 5
- Hops 4
- College students 2
- Graminaceae 2
- Oregon Agricultural College. Experiment Station 2
- Oregon State University. Extension Service 2
- Vetch 2
- Wheat 2
- Agricultural laborers 1
- Agricultural machinery 1
- Agricultural systems 1
- Blackberries 1
- Children 1
- Combines (Agricultural machinery) 1
- Hay 1
- Horticulture 1
- Mountains--Oregon 1
- Orchards 1