Statistics for occurrence #1 of “Port Gibson” in chapter 28 of Admiral David D. Porter, The Naval History of the Civil War.:

...ht following the attack on Grand Gulf information was obtained from a negro, that there was a good landing at Bruensburg, six miles below Grand Gulf, and that from Bruensburg an excellent road led to Port Gibson . twelve miles in the interior. In consequence of this information the gun-boats and transports were next morning crowded with troops, and steamed down the river. About noon, Grant disembarked thi...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Port Gibson (Mississippi, United States) 955 2 41 0 0 user votes
Port Gibson (New York, 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.