Creator
- Oregon State College. Extension Service80
- Lane County (Or.)5
- Polk County (Or.)4
- Benton County (Or.)3
- Clackamas County (Or.)3
- Deschutes County (Or.)3
- Jackson County (Or.)3
- Josephine County (Or.)3
- Klamath County (Or.)3
- Linn County (Or.)3
- Marion County (Or.)3
- Tillamook County (Or.)3
- Umatilla County (Or.)3
- Union County (Or.)3
- Wasco County (Or.)3
- Baker County (Or.)2
- Clatsop County (Or.)2
- Crook County (Or.)2
- Douglas County (Or.)2
- Gilliam County (Or.)2