Statistics for occurrence #1 of “Port Royal” in chapter 9 of Admiral David D. Porter, The Naval History of the Civil War.:

...to Island entirely deserted and partially destroyed, though on these occasions the rebels always managed to carry off the guns. Having obtained all the necessary information the vessels returned to Port Royal . Another expedition, under Commander C. R. P. Rodgers, left Tybee Roads on the 11th of December, 1861, with the Ottawa, Pembina, Seneca and Henry Andrew. Entering and passing up Vernon River,...
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.