Statistics for occurrence #1 of “Arkansas” in chapter 1 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Index:

... Arkansas
M. A. Townsend, IX., 276. E. S. P. Ward, IX., 144, 145, 146. Headquarters, mail and newspapers, VIII....
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Arkansas (Arkansas, United States) 8,997 8 1 0 0 user votes
Arkansas (United States) 698 0 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.