Statistics for occurrence #1 of “Hagerstown” in chapter 2.8 of Southern Historical Society Papers, Volume 3.:

...e twenty-second to Roper's farm, on the road to Charlestown, and on the twenty-third to Shepherdstown. On the twenty-fourth it crossed the Potomac, and moved to Boonsboroa, on the twenty-fifth to Hagerstown , on the twenty-sixth two miles beyond Greencastle, and on the twenty-seventh through Chambersburg to Fayetteville, at which place it halted until the first of July. Soon after daylight on the fir...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Hagerstown (Maryland, United States) 2,520 14 172 0 0 user votes
Hagerstown (Indiana, United States) 6 0 2 0 0 user votes
Hagerstown (New Jersey, United States) 4 0 0 0 0 user votes
Hagerstown (Ohio, United States) 4 0 2 0 0 user votes
Hagerstown (Ohio, United States) 0 0 0 0 0 user votes
Hagerstown (Ohio, 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.