Topic
- Mining engineering 2
- Monuments 2
- Oregon National Historic Trail 2
- Oregon State University. Extension Service 2
- Roads 2
- Sheep 2
- Snow 2
- Stagecoaches 2
- Teachers 2
- Tipis 2
- 4-H clubs 1
- Agricultural laborers 1
- Fire lookout stations 1
- Footbridges 1
- Forest fires--Prevention and control 1
- Livestock 1
- Mills and mill-work 1
- Onion industry 1
- Onions 1
- Potatoes 1
