Statistics for occurrence #1 of “Port Royal” in chapter 1 of Daniel Ammen, Confederate Military History, a library of Confederate States Military History: Volume 7.2, The Atlantic Coast:

...aval operations from Cape Hatteras to Cape Florida, along the coasts, and within the sounds, rivers, and harbors of this watershed. As an actuality, two centres of operations existed : the one at Port Royal , the depot of supplies and usual headquarters of the South Atlantic Blockading Squadron; the other within the sounds, and on the coast of North Carolina, over which the North Atlantic Blockading Squ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Port Royal (South Carolina, United States) 2,928 94 170 0 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.