Statistics for occurrence #1 of “Vicksburg” in chapter 26 of Admiral David D. Porter, The Naval History of the Civil War.:

...ith army stores for Port Hudson had sealed the fate of that place; they could not hold out, and Bank's Army would soon be free to march upon Vicksburg by the left shore of the river. At this time Vicksburg mounted seventy-five heavy guns, and possessed a number of heavy rifled field-pieces, which, being able to move about, were quite as annoying to vessels running the blockade. The guns at Vicksbur...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Vicksburg (Mississippi, United States) 8,077 676 627 8 0 user votes
Vicksburg (Colorado, United States) 1 0 1 0 0 user votes
Vicksburg (Mississippi, United States) 1 0 1 0 0 user votes
Vicksburg (Arizona, United States) 0 0 0 0 0 user votes
Vicksburg (Florida, United States) 0 0 0 0 0 user votes
Vicksburg (Indiana, United States) 0 0 0 0 0 user votes
Vicksburg (Kentucky, United States) 0 0 0 0 0 user votes
Vicksburg (Michigan, United States) 0 0 0 0 0 user votes
Vicksburg (Missouri, United States) 0 0 0 0 0 user votes
Vicksburg (Pennsylvania, United States) 0 0 0 0 0 user votes
Vicksburg (Pennsylvania, United States) 0 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.