Statistics for occurrence #1 of “Upperville” in chapter 28 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...and Middleburg January 26. Chancellorsville Campaign April 27-May 6. Stoneman's Raid April 29-May 8. Brandy Station and Beverly Ford June 9. Aldie June 17. Middleburg June 19. Upperville June 21. Dover June 22. Battle of Gettysburg, Pa., July 1-3. Emmettsburg, Md., July 4. Old Antietam Forge, near Leitersburg, July 10. Reconnoissance to Ashby's Gap July 11-14. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Upperville (Virginia, United States) 586 143 22 1 0 user votes
Upperville (New York, 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.