Statistics for occurrence #1 of “Columbus” in chapter 13 of Admiral David D. Porter, The Naval History of the Civil War.:

... make reconnoissance, accompanied by officers of General Grant's staff. At Norfolk, six miles below Cairo, the Taylor took on board a hundred men of the Ninth Illinois Regiment, and then approached Columbus to ascertain the strength of the batteries. These batteries were built upon what was called the Iron Banks, at the first Chickasaw Bluff, which rose from two to three hundred feet above the river, ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Columbus (Georgia, United States) 419 0 283 0 0 user votes
Columbus (Mississippi, United States) 325 6 141 0 0 user votes
Columbus (Alabama, United States) 4 0 0 0 0 user votes
Columbus (Indiana, United States) 3 0 3 0 0 user votes
Columbus (Arkansas, United States) 1 0 1 0 0 user votes
Columbus (New York, United States) 1 0 1 0 0 user votes
Columbus (North Carolina, United States) 1 0 1 0 0 user votes
Columbus (Colorado, United States) 0 0 0 0 0 user votes
Columbus (Georgia, United States) 0 0 0 0 0 user votes
Columbus (Illinois, United States) 0 0 0 0 0 user votes
Columbus (Kansas, United States) 0 0 0 0 0 user votes
Columbus (Louisiana, United States) 0 0 0 0 0 user votes
Columbus (Michigan, United States) 0 0 0 0 0 user votes
Columbus (Montana, United States) 0 0 0 0 0 user votes
Columbus (Nevada, United States) 0 0 0 0 0 user votes
Columbus (New Jersey, United States) 0 0 0 0 0 user votes
Columbus (New Mexico, United States) 0 0 0 0 0 user votes
Columbus (North Carolina, United States) 0 0 0 0 0 user votes
Columbus (North Dakota, United States) 0 0 0 0 0 user votes
Columbus (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.