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

...Rodgers, Eads and their assistants put forth all their energies to get the squadron ready for service, as the enemy were fortifying the banks of the rivers in Tennessee, and Polk's heavy batteries at Columbus barred the way against vessels from above. The civilians who had charge of the building of the gun-boats were not skilled in the construction of war-vessels, and the time of the naval officers was ...
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.