Statistics for occurrence #1 of “Arkansas” in chapter 30 of Admiral David D. Porter, The Naval History of the Civil War.:

...ds without molestation, and even when General Grant had gained the rear of Vicksburg they relied on General J. E. Johnston's army to protect them while they completed the work on the rams. If the Arkansas , which ran the gauntlet of Farragut and Davis' squadrons, was a specimen of the iron-clad that could be built at Yazoo City, the Federals had cause to congratulate themselves that the Yazoo was open ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Arkansas (Arkansas, United States) 8,997 64 1 0 0 user votes
Arkansas (United States) 698 10 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.