Statistics for occurrence #1 of “Missouri River” in entry united-states-of-america-missouri of Harper's Encyclopedia of United States History:

...e Senate by 12 to 10......1879 Convention of representatives of the commercial and agricultural and other productive industries of the Mississippi Valley meets at St. Louis......Oct. 26, 1881 Missouri River improvement convention meets at St. Joseph. Four States and two Territories are represented......Nov. 29, 1881 Downing high license law passed, which fixes the maximum State and county tax on l...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Missouri River (Kansas, United States) 30 12 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.