Statistics for occurrence #1 of “Mississippi” in chapter 4, page 104 of G. S. Hillard, Life and Campaigns of George B. McClellan, Major-General , U. S. Army:

...de beforehand for the struggle; and it is his deserved honor that, finding the West unprepared, he organized the germ of that brave army which has since gained such renown in Kentucky, Tennessee, and Mississippi .
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Mississippi (Mississippi, United States) 5,101 2 1 0 0 user votes
Mississippi (United States) 3,760 2 0 0 0 user votes
Mississippi (Canada) 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.