Statistics for occurrence #1 of “Boonsboro” in chapter 9 of Brigadier-General Ellison Capers, Confederate Military History, a library of Confederate States Military History: Volume 5, South Carolina:

... rout from the mountain before Longstreet came up is due to the firmness and heroism of his defense. That it did not envelop both Longstreet and Hill late in the afternoon, and force them down upon Boonsboro , is due to the skill of those generals, and the conduct of their troops and their commanders. Having already stated the order for the investment of Harper's Ferry, we will have now to do with the...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Boonsboro (Maryland, United States) 743 54 41 0 0 user votes
Boonsboro (Virginia, United States) 38 0 0 0 0 user votes
Boonsboro (Maryland, United States) 0 0 0 0 0 user votes
Boonsboro (Missouri, 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.