Statistics for occurrence #1 of “Port Royal” in chapter 52 of Admiral David D. Porter, The Naval History of the Civil War.:

...s. You are selected to command the naval force, and you will endeavor to be at Port Royal by the latter part of September, where further orders will await you. Bring with you to the rendezvous at Port Royal all such vessels and officers as can be spared from the West Blockading Squadron without impeding its efficiency; and when you leave, turn over the command of the squadron to the officer next in rank...
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.