- United States. Forest Service14
- Oregon Pioneer Association. Reunion10
- Oregon Pioneer Association5
- Southern Pacific Company5
- Indian War Veterans And Historical Society4
- Native Sons Of Oregon4
- University Of Oregon4
- Graves, Henry Solon, 1871 19513
- Leiberg, John B. (John Bernhard), 1853 19133
- Lockley, Fred, 1871 3
- Minto, John, 1822 19153
- Muir, John, 1838 19143
- Nash, Wallis3
- Oregon Agricultural College3
- Oregon Agricultural College. Alumni Association3
- Oregon. Department Of Forestry3
- Teal, Joseph Nathan, 1858 19293
- Williams, John Harvey, 1864 3
- [Author Not Identified]2
- Benton County Citizens' League2