Statistics for occurrence #1 of “Harper's Ferry” in chapter 1 of General Joseph E. Johnston, Narrative of Military Operations During the Civil War:

...lished by the concentration of its forces at Harper's Ferry; for General Patterson's invasion was to be from Chambersburg, and therefore by Williamsport and Martinsburg, a route beyond the control of Harper's Ferry . Notwithstanding this determination on the part of the Executive, I resolved not to continue to occupy the place after the purposes for which the troops were sent to it should require them else...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Harper's Ferry (West Virginia, United States) 10,974 104 304 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.