Creator
- Hopkins, A. D. (Andrew Delmar), 1857 19482
- Alspaugh, Augustus Marshall1
- Curtis & Romans1
- Fernow, Bernhard Eduard1
- Gifford, Benjamin A.1
- Johnson, Albert Lynn1
- Oregon Agricultural College. Experiment Station1
- Oregon State Agricultural College1
- Oregon State Agricultural College. Experiment Station1
- United States, General Land Office1
- United States. Department Of Agriculture1
- United States. Division Of Entomology1
- United States. Division Of Forestry1