Index to Unnumbered Photographs - O
- Oats
- P019 - Station Bulletin Illustrations
- P062 - Extension Service; 95:044
- O'Brien, D. Michael
- P120 - Agricultural Communications; 95:046
- Oceanography, College of
- P003 - Beaver; 95:014
- P057 - News and Communications Services; 91:156, 92:054, 92:060
- Oceanography-Research
- P003 - Beaver; 95:014
- P057 - News and Communication Services; 92:054
- P098 - Robert W. Henderson Collection; 91:179
- P195 - Oregon Stater; 91:179
- O'Connor, Jerry
- Office workers
- P200 - Budgets and Planning; 96:089
- Ohvall, Richard
- Okra
- P019 - Station Bulletin Illustrations
- Oldfield, James
- P195 - Oregon Stater; 88:2; 95:028
- Oliver Ranch (Grant County, Or.)
- P062 - Extension Service; 95:044
- Onions
- P062 - Extension Service; 95:044
- P106 - Bioresource Engineering Department; 96:013
- RG025 - Agricultural Experiment Station, SG 2-Branch Stations (Malheur)
- Operas & operettas
- MSS - Plinkiewisch, Helen E., Papers
- Orange grove
- MSS - Hunter, Albert S., Collection
- Orators
- P003 - Beaver; 95:004; 95:014
- P088 -Speech Department; photo album
- Orchards
- P019 - Station Bulletin Illustrations
- P057 - News and Communications Services; 91:156
- P062 - Extension Service; 95:044
- P106 - Bioresource Engineering Department; 96:013
- P120 - Agricultural Communications; 94:037
- MSS - Bloss, John McKnight, Collection
- RG025 - Agricultural Experiment Station:
- SG 2-Branch Stations (various)
- SG 3-Research Records (Entomology Dept.)
- Orchesis Dance Honorary
- Oregon City (Or.)
- MSS - Hunter, Albert S., Collection
- Oregon Coast
- P062 - Extension Service; 95:044
- Oregon Electric Depot (Albany, Or.)
- MSS - Cox, Jeannette I., Collection
- Oregon Forest Nursery
- P061 - College of Forestry; 95:001
- Oregon Forest Products Laboratory
- MSS - Dunn, Paul M., Papers
- Oregon Home Economics Extension Council
- MSS - Shuff, Florence Lynds, Collection
- Oregon State Board of Forestry
- MSS - Dunn, Paul M., Papers
- Oregon State Council on Aging
- P048 - Division of Continuing Education; 91:033
- Oregon State Forest Nursery
- RG025 - Agricultural Experiment Station, SG 3-Research Records (project #109)
- Oregon Stater
- P210 - Institutional Advancement; 95:033
- Oregon Trail
- P048 - Division of Continuing Education; 91:033
- Oregon views
- P057 - News and Communications Services; 91:156, 92:060
- P062 - Extension Service; 95:044
- P195 - Oregon Stater; 91:179
- P198 - Memorial Union; 92:064
- MSS - Cox, Jeannette I., Collection
- MSS - Jones, Alice, Collection
- MSS - Oregon State University Extension Association/4-H (ORESU/4-H)
- OSU Card (ID card)
- Ott, Maxine Peterson
- P017 - Alumni Relations; 95:049
- Ott, Walther H.
- P017 - Alumni Relations; 95:049
- Outdoor School
- Owen, John E., III
- Owyhee Irrigation Project
- RG025 - Agricultural Experiment Station, SG 3-Research Records (project #76)
- Oxford Club House
- P213 - Lowe, Art, Photograph Collection
- Oysters
- RG025 - Agricultural Experiment Station, SG 3-Research Records (Fish & Game Management Dept.)