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- mixed material✖[remove]3
- Manuscripts✖[remove]3
- Notebooks✖[remove]3
- illustrations (AAT)3
- journals (accounts): diaries (AAT)3
- English✖[remove]3
- Indians of North America--Northwest, Pacific--Languages3
- Indians of North America--Northwest, Pacific--Social life and customs3
- Indians of North America--Washington (State)--Languages3
- Indians of North America--Washington (State)--Social life and customs3
- Natural history--Northwest, Pacific3
- Natural history--Washington (State)3
- Pacific railroads--Explorations and surveys3
- Surveyors--Northwest, Pacific3
- Surveyors--Washington (State)--lcsh3
- Gibbs, George,--1815-1873✖[remove]3
- Northwest Boundary Commission, 1857-18693
Current results range from 1853 to 1858