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Creator
- Oregonian (Firm) 109
- Oregon Journal (Firm) 90
- University of California, Berkeley 18
- Portland Chamber of Commerce (Or.) 16
- New York Times Company 12
- Finley, William L. (William Lovell), 1876-1953 10
- Izaak Walton League of America 10
- Oregon Audubon Society 10
- Nature 9
- Statesman Journal 8
- Alber & Wickes, Inc. 7
- Bohlman, Herman 7
- The Hartford Times 7
- Boston City Club 6
- Muskegon Chronicle 6
- Oregon City Enterprise Courier (Oregon City, Or.) 6
- Oregon Wildlife Federation 5
- Young Men's Christian Associations of North America 5
- American Museum of Natural History 4
- American Nature Association 4