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Creator
- Portland Chamber of Commerce (Or.) 24
- Oregonian (Firm) 13
- Oregon Journal (Firm) 12
- Altoona Tribune 1
- Bonneville Dam Fishways Committee 1
- Chicago Congregational Club 1
- City Club of Portland (Portland, Or.) 1
- Clark, Ernest Dunbar, 1886- 1
- Clough, Ray W. 1
- Columbia River Packers' Association 1
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Region
- Columbia River >> Clatsop County >> Oregon >> United States 5
- Willamette River >> Multnomah County >> Oregon >> United States 5
- Malheur National Wildlife Refuge >> Harney County >> Oregon >> United States 4
- Lower Klamath National Wildlife Refuge >> Siskiyou County >> California >> United States 2
- Alaska >> United States 1
- Bonneville Dam >> Multnomah County >> Oregon >> United States 1
- Chicago >> Cook County >> Illinois >> United States 1
- Clear Lake National Wildlife Refuge >> Modoc County >> California >> United States 1
- Detroit >> Wayne County >> Michigan >> United States 1
- Tule Lake National Wildlife Refuge >> Siskiyou County >> California >> United States 1
Decade
- 1930-1939 24