Statistics for occurrence #1 of “Arkansas” in chapter 14 of Wiley Britton, Memoirs of the Rebellion on the Border 1863.:

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The enemy occupying the heights south of the Arkansas River in sight of Fort Gibson picket firing across the River all day long strength of General Cooper's force he is preparing to capture Colonel Phillips' supply train name of post of Fort Gibson ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Arkansas (Arkansas, United States) 8,997 188 1 0 0 user votes
Arkansas (United States) 698 102 0 0 0 user votes
Arkansas (Kentucky, United States) 2 0 0 0 0 user votes
Arkansas (West Virginia, United States) 2 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.