Creator
- Oregon State College. Extension Service21
- Linn County (Or.)4
- Benton County (Or.)1
- Clackamas County (Or.)1
- Clatsop County (Or.)1
- Coos County (Or.)1
- Deschutes County (Or.)1
- Douglas County (Or.)1
- Grant County (Or.)1
- Jackson County (Or.)1
- Klamath County (Or.)1
- Lake County (Or.)1
- Lane County (Or.)1
- Long Range Planning Conference (1936 : Benton County, Or.)1
- Long Range Planning Conference (1936 : Clackamas County, Or.)1
- Long Range Planning Conference (1936 : Clatsop County, Or.)1
- Long Range Planning Conference (1936 : Coos County, Or.)1
- Long Range Planning Conference (1936 : Deschutes County, Or.)1
- Long Range Planning Conference (1936 : Douglas County, Or.)1
- Long Range Planning Conference (1936 : Grant County, Or.)1