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- Gardner, John W. (John William), 1912-2002 6
- Meetings 5
- United States--Officials and employees 5
- United States. Department of Agriculture. Office of Information 5
- Abandoned farms 4
- Mountains 4
- Rocky Mountains 4
- Universities and colleges--Faculty 4
- Entomological Society of America 3
- Oregon State University 3
- Strip mining 3
- Beef cattle 2
- Farms 2
- Future, The 2
- Michigan State University. Agricultural Experiment Station 2
- Newspaper editors 2
- Price, Robert D. (Robert Dale), 1927-2004 2
- Wittwer, S. H. (Sylvan Harold), 1917-2012 2
- Abelson, Philip Hauge 1
- Canyons 1