Statistics for occurrence #1 of “Columbia River” in alphabetic letter T, entry group 4, entry townsend-john-kirk of Harper's Encyclopedia of United States History:

... Columbia River
Naturalist; born in Philadelphia, Pa., Aug. 10, 1809; was associated with John J. Audubon in the preparation of ; travelle...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Columbia River (United States) 178 84 0 0 0 user votes
Columbia River (Washington, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.