Subject
- 4-H clubs163
- Agriculture -- Oregon109
- Agriculture73
- Agriculture -- Oregon -- Statistics58
- Farm produce -- Oregon -- Statistics56
- Game and game-birds -- Oregon53
- Game protection -- Oregon52
- Fisheries -- Oregon50
- Wildlife management -- Oregon46
- Fishing -- Oregon43
- Hunting -- Oregon43
- Potatoes -- Oregon -- Klamath County36
- Forests and forestry -- Research -- Oregon32
- Engineering27
- Forests and forestry -- Oregon26
- Fisheries -- Economic aspects -- Congresses25
- Reforestation -- Oregon25
- Industrial arts -- Study and teaching24
- Douglas fir23
- Hatfield Marine Science Center23