Statistics for occurrence #1 of “Port Royal” in chapter 4.16 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: Volume 2.:

...Captain Wilkes, while at Havana, had learned more definitely of the character of Du Pont's fleet, from which he inferred its destination, for of the Southern ports the larger vessels could enter only Port Royal . He directed me to refit our battery and get the San Jacinto ready in all respects for battle, adding that he would join Du Pont in time to cooperate with him. (As it was, Port Royal fell the d...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Port Royal (South Carolina, United States) 2,928 17 170 1 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.