Statistics for occurrence #1 of “Charleston” in chapter 39 of Admiral David D. Porter, The Naval History of the Civil War.:

... the obstacles then presented. The South Atlantic squadron, during the year 1863, had performed most valuable service in blockading the Southern coast, and had succeeded in maintaining a force in Charleston harbor which completely closed that port as a refuge for blockade-runners, and prevented the Confederates from obtaining further supplies in that quarter. The Navy Department had made great effor...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Charleston (South Carolina, United States) 9,029 898 1,545 0 0 user votes
Charleston (California, United States) 22 0 0 0 0 user votes
Charleston (North Carolina, United States) 3 0 1 0 0 user votes
Charleston (Mississippi, United States) 2 0 2 0 0 user votes
Charleston (New York, United States) 2 0 2 0 0 user votes
Charleston (Iowa, United States) 0 0 0 0 0 user votes
Charleston (Kentucky, United States) 0 0 0 0 0 user votes
Charleston (Maine, United States) 0 0 0 0 0 user votes
Charleston (Michigan, United States) 0 0 0 0 0 user votes
Charleston (Nevada, United States) 0 0 0 0 0 user votes
Charleston (New Jersey, United States) 0 0 0 0 0 user votes
Charleston (New Zealand) 0 0 0 0 0 user votes
Charleston (Ohio, United States) 0 0 0 0 0 user votes
Charleston (Ohio, United States) 0 0 0 0 0 user votes
Charleston (Ohio, United States) 0 0 0 0 0 user votes
Charleston (Ohio, United States) 0 0 0 0 0 user votes
Charleston (Oregon, United States) 0 0 0 0 0 user votes
Charleston (Pennsylvania, United States) 0 0 0 0 0 user votes
Charleston (Pennsylvania, United States) 0 0 0 0 0 user votes
Charleston (South Australia, Australia) 0 0 0 0 0 user votes
Charleston (Texas, United States) 0 0 0 0 0 user votes
Charleston (Utah, United States) 0 0 0 0 0 user votes
Charleston (Washington, 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.