Statistics for occurrence #1 of “Chambersburg” in chapter 33 of Elias Nason, McClellan's Own Story: the war for the union, the soldiers who fought it, the civilians who directed it, and his relations to them.:

... be rapidly concentrated in that direction to attack him in force; if he moved upon Baltimore the entire army could rapidly be thrown in his rear and his retreat cut off; if he moved by Gettysburg or Chambersburg upon York or Carlisle we were equally in position to throw ourselves in his rear. The first thing was to gain accurate information as to Lee's movements, and meanwhile to push the work of supply ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Chambersburg (New Jersey, United States) 716 2 128 2 0 user votes
Chambersburg (Illinois, United States) 0 0 0 0 0 user votes
Chambersburg (Missouri, United States) 0 0 0 0 0 user votes
Chambersburg (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.