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- Fernow, B. E. (Bernhard Eduard), 1851 19238
- Washburn, F. L. (Frederic Leonard), 1860 19278
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- Oregon Agricultural College. Experiment Station6
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- Oregon State Agricultural College5
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- United States. Department Of Agriculture. Forestry Division5
- Craig, Moses4
- Oregon State University. Agricultural Experiment Station4
- United States. Congress. House. Committee On Rivers And Harbors4
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- Roth, Filibert, 1858 19253
- United States. Congress. Senate. Committee On Commerce3