Statistics for occurrence #1 of “Middleburg” in chapter 3 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 4: The Cavalry:

...the Blue Ridge, and marching northward. The country was checkered with stone fences, strongly built and in good condition. Along the turnpike from Washington to Winchester, passing through Aldie, Middleburg , Upperville, and Paris there was continuous and severe fighting in which the cavalry alone participated. A Federal force, formed of the second cavalry division under General Gregg, with Kilpatrick'...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Middleburg (Virginia, United States) 495 6 17 0 0 user votes
Middleburg (Pennsylvania, United States) 84 0 2 0 0 user votes
Middleburg (New York, United States) 14 0 0 0 0 user votes
Middleburg (Maryland, United States) 1 0 1 0 0 user votes
Middleburg (Florida, United States) 0 0 0 0 0 user votes
Middleburg (Iowa, United States) 0 0 0 0 0 user votes
Middleburg (Kentucky, United States) 0 0 0 0 0 user votes
Middleburg (North Carolina, United States) 0 0 0 0 0 user votes
Middleburg (Ohio, United States) 0 0 0 0 0 user votes
Middleburg (Ohio, United States) 0 0 0 0 0 user votes
Middleburg (Ohio, United States) 0 0 0 0 0 user votes
Middleburg (Ohio, United States) 0 0 0 0 0 user votes
Middleburg (Oklahoma, United States) 0 0 0 0 0 user votes
Middleburg (Pennsylvania, United States) 0 0 0 0 0 user votes
Middleburg (Pennsylvania, United States) 0 0 0 0 0 user votes
Middleburg (Tennessee, United States) 0 0 0 0 0 user votes
Middleburg (Tennessee, 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.