Statistics for occurrence #1 of “Hagerstown” in chapter 43, regiment WV1Cav of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...May 3 (Detachment). Winchester June 13-15 (Cos. C and K ). Hanover, Pa., June 30. Gettysburg, Pa., July 1-3. Hunterstown July 2. Monterey Gap July 4. Smithburg July 5. Hagerstown July 6. Boonsboro July 8. Hagerstown July 11-13. Falling Water July 14. Expedition from Fayetteville, W. Va., to Wytheville July 13-15 (2 Cos.). Shanghai July 16 (Co. A ). ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Hagerstown (Maryland, United States) 2,520 161 172 43 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.