- Forest Products Laboratory (U.S.)1,936
- United States. Bureau Of Land Management382
- Klamath Falls Resource Area363
- United States. Forest Service. Northern Region. State & Private Forestry195
- U.S. International Biological Program. Coniferous Forest Biome190
- Oregon. Dept. Of Geology And Mineral Industries181
- United States. Forest Service174
- University Of Washington157
- Oregon State University. Water Resources Research Institute151
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)127
- Oregon. Fish Commission112
- Oregon. Department Of Fish And Wildlife91
- United States. Forest Service. Northern Region90
- Lane County Historical Society (Or.)79
- Institute For Natural Resources77
- Mcgregor, Mark D.61
- Fobes, E. W.58
- James, Robert L.53
- Norris, Charles, B. (Charles Brazer), 1894 51
- Browne, F. L. (Frederick Lincoln), 1895 47