Statistics for occurrence #1 of “Port Royal” in chapter 8 of Admiral David D. Porter, The Naval History of the Civil War.:

..., which served to keep the enemy in a continual state of uneasiness and made our officers acquainted with all the surrounding land and water. Having done all that was necessary in the vicinity of Port Royal , Flag Officer Dupont turned his attention towards Fernandina in Florida, twenty-five miles north of the St. John's River. On the second of March, 1862, the Wabash, and what other vessels could be ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Port Royal (South Carolina, United States) 2,928 130 170 6 0 user votes
Port Royal (Jamaica) 4 0 4 0 0 user votes
Port Royal (Georgia, United States) 2 0 0 0 0 user votes
Port Royal (Alabama, United States) 0 0 0 0 0 user votes
Port Royal (Florida, United States) 0 0 0 0 0 user votes
Port Royal (Kentucky, United States) 0 0 0 0 0 user votes
Port Royal (Pennsylvania, United States) 0 0 0 0 0 user votes
Port Royal (Pennsylvania, United States) 0 0 0 0 0 user votes
Port Royal (Tennessee, 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.