- United States. Forest Service. Northern Region35
- James, Robert L.20
- United States. Forest Service. Northern Region. State & Private Forestry16
- Gibson, Kenneth E.11
- Bousfield, Wayne E.6
- Dooling, Oscar J.6
- Mcgregor, Mark D.5
- Oakes, Robert D.4
- Tunnock, Scott4
- Byler, James W.3
- Dewey, Jerald E.3
- Eder, Robert G.3
- Gilligan, Carma J.3
- Livingston, R. Ladd3
- Stipe, Lawrence E.3
- United States. Forest Pest Management3
- Monnig, Edward C.2
- United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management2
- Woo, John You2
- Wulf, N. William2