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- Architecture, American 44
- Architecture--United States 28
- Architecture 16
- Fraternal lodges 16
- Lichens 10
- Agriculture 8
- Agricultural laborers 6
- Oregon State University. Extension Service 6
- Beets 4
- Ice 4
- Japanese Americans 4
- Onions 4
- Croplands 3
- Universities and colleges--Faculty 3
- Dwellings 2
- Farms 2
- Mexican American agricultural laborers 2
- Oregon State University. Malheur Experiment Station 2
- Prisoners of war 2
- Sugar beet 2