Statistics for occurrence #1 of “Martinsburg” in chapter 7, page 100 of Col. Robert White, Confederate Military History, a library of Confederate States Military History: Volume 2.2, West Virginia:

...unition contained, destroying the magazine, and, as was afterward ascertained, injuring some forty of the Federal soldiers. The bridge was then cut, and White retired to rejoin Early's command near Martinsburg . On June 22d, Gen. John H. Morgan, of Kentucky, was assigned to command the department of Western Virginia and East Tennessee, and soon afterward General Crook was given chief command of the Fede...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Martinsburg (West Virginia, United States) 3,548 10 134 0 0 user votes
Martinsburg (Maryland, United States) 21 0 3 0 0 user votes
Martinsburg (New York, United States) 6 0 2 0 0 user votes
Martinsburg (Illinois, United States) 4 0 0 0 0 user votes
Martinsburg (Missouri, United States) 4 0 0 0 0 user votes
Martinsburg (Missouri, United States) 2 0 2 0 0 user votes
Martinsburg (Pennsylvania, United States) 1 0 1 0 0 user votes
Martinsburg (Indiana, United States) 0 0 0 0 0 user votes
Martinsburg (Iowa, United States) 0 0 0 0 0 user votes
Martinsburg (Kentucky, United States) 0 0 0 0 0 user votes
Martinsburg (Kentucky, United States) 0 0 0 0 0 user votes
Martinsburg (Nebraska, United States) 0 0 0 0 0 user votes
Martinsburg (Ohio, United States) 0 0 0 0 0 user votes
Martinsburg (Ohio, United States) 0 0 0 0 0 user votes
Martinsburg (Ohio, United States) 0 0 0 0 0 user votes
Martinsburg (Pennsylvania, 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.