Statistics for occurrence #1 of “Sharpsburg” in chapter 33, page 623 of Maj. Jed. Hotchkiss, Confederate Military History, a library of Confederate States Military History: Volume 3, Virginia:

... covered the retreat through Boonsboro, where there was a fierce and protracted fight. He succeeded in delaying the enemy through the greater part of September 16th, and then joined the army before Sharpsburg . In November his brigade was reorganized. He served on the Confederate left above Fredericksburg in December, took part in the raid on Dumfries and Fairfax Station, and in February,
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Sharpsburg (Maryland, United States) 3,371 94 131 0 0 user votes
Sharpsburg (Ohio, United States) 166 0 12 0 0 user votes
Sharpsburg (Kentucky, United States) 4 0 2 0 0 user votes
Sharpsburg (Pennsylvania, United States) 1 0 1 0 0 user votes
Sharpsburg (Georgia, United States) 0 0 0 0 0 user votes
Sharpsburg (Illinois, United States) 0 0 0 0 0 user votes
Sharpsburg (Iowa, United States) 0 0 0 0 0 user votes
Sharpsburg (Louisiana, United States) 0 0 0 0 0 user votes
Sharpsburg (Mississippi, United States) 0 0 0 0 0 user votes
Sharpsburg (Missouri, United States) 0 0 0 0 0 user votes
Sharpsburg (North Carolina, United States) 0 0 0 0 0 user votes
Sharpsburg (Ohio, United States) 0 0 0 0 0 user votes
Sharpsburg (Ohio, United States) 0 0 0 0 0 user votes
Sharpsburg (Pennsylvania, United States) 0 0 0 0 0 user votes
Sharpsburg (Pennsylvania, 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.