- Truax, T. R. (Thomas Roy), 1886 2
- Cass, William Avery1
- Forest Products Laboratory (U.S.)1
- Harrison, C. A.1
- Hayden, Alice Hazel, 1909 19941
- Jenkins, Roy Horace1
- Mcpherson, Lester J.1
- Oregon State Agricultural College. Extension Service1
- Oregon State Board Of Forestry1
- Oregon Trail Memorial Association1
- Peavy, George Wilcox, 1869 19511
- Russell, Emil Richard1
- Stevens, Blanche Whittier1
- Thacher, W. F. G1
- Thelen, Rolf1
- United States. Department Of Agriculture1
- United States. Forest Service1
- Voorhies, Glen1
- Western Forestry And Conservation Association (U.S.)1