- Forest Products Laboratory (U.S.)195
- Western Dry Kiln Clubs74
- Western Dry Kiln Association70
- Torgeson, Oscar W.16
- Western Dry Kiln Clubs. Meeting (8th : 1956 : Berkeley, Calif.)16
- Oregon State University. Forest Research Laboratory15
- Peck, Edward C. (Edward Coit), 1894 12
- Rietz, Raymond Carl, 1901 12
- Kozlik, Charles J.11
- Oregon State University. Extension Service11
- Stamm, Alfred J. (Alfred Joaquim), 1897 10
- Western Dry Kiln Association. Meeting (40th : 1989)10
- Western Dry Kiln Clubs. Meeting (4th : 1952 : Redding, Calif.)10
- Western Dry Kiln Clubs. Meeting (7th : 1955 : Klamath Falls, Or.)10
- Mcmillen, John M.9
- Western Dry Kiln Association. Meeting (38th : 1987)9
- Loughborough, W. Karl8
- Milota, Michael R.8
- Western Dry Kiln Association. Meeting (50th : 1999 : Portland, Or.)8
- Oregon Forest Products Laboratory7