Statistics for occurrence #1 of “Charleston harbor” in article 7 of The Daily Dispatch: February 10, 1862., [Electronic resource]:

...l Shipowners' Association, you addressed to him on the 13th instant, calling his attention to the course which the Federal Government of the United States have adopted for closing the main channel of Charleston harbor by sinking there vessels laden with stone, and expressing the fear of the Association that unless strong representations and remonstrances are promptly made a similar course may be immediately follow...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Charleston Harbor (South Carolina, United States) 1,700 6 36 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.