Statistics for occurrence #1 of “Yorktown” in chapter 36 of Admiral David D. Porter, The Naval History of the Civil War.:

... January there was but little of moment to report in the North Atlantic squadron, beyond the operations in the sounds of North Carolina and the naval expedition under Commander Foxhall A. Parker, off Yorktown , which proved successful, the Navy being of much service to the Army contingent under General Negley; also a successful military expedition up the Neuse River under General Foster, in which the Navy ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Yorktown (Virginia, United States) 5,134 26 356 0 0 user votes
Yorktown (Arkansas, United States) 16 0 0 0 0 user votes
Yorktown (Pennsylvania, United States) 5 0 1 0 0 user votes
Yorktown (Illinois, United States) 0 0 0 0 0 user votes
Yorktown (Indiana, United States) 0 0 0 0 0 user votes
Yorktown (Iowa, United States) 0 0 0 0 0 user votes
Yorktown (Kentucky, United States) 0 0 0 0 0 user votes
Yorktown (Maryland, United States) 0 0 0 0 0 user votes
Yorktown (Missouri, United States) 0 0 0 0 0 user votes
Yorktown (New Jersey, United States) 0 0 0 0 0 user votes
Yorktown (New Mexico, United States) 0 0 0 0 0 user votes
Yorktown (New York, United States) 0 0 0 0 0 user votes
Yorktown (North Carolina, United States) 0 0 0 0 0 user votes
Yorktown (Ohio, United States) 0 0 0 0 0 user votes
Yorktown (South Dakota, United States) 0 0 0 0 0 user votes
Yorktown (Tennessee, United States) 0 0 0 0 0 user votes
Yorktown (Texas, 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.