Statistics for occurrence #1 of “Martinsburg” in chapter 35, regiment PA54 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...ons in Hampshire and Hardy Counties January 26-February 7. Patterson Creek February 3 (Co. F ). Fremont's Ford April 1. Little Cacapon April 10 (Co. K ). Sigel's Expedition from Martinsburg to New Market April 30-May 16. Battle of New Market May 15. Hunter's Expedition to Lynchburg May 26-July 1. Piedmont, Mount Crawford, June 5. Occupation of Staunton June 6. Middle...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Martinsburg (West Virginia, United States) 3,548 375 134 57 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.