Statistics for occurrence #1 of “Pennsylvania” in chapter 3, page 311 of Comte de Paris, History of the Civil War in America. Vol. 2.:

...ations in their favor. The Confederates, astonished at this reception, naturally accused their Maryland brethren of cowardice and treason. Lee, however, did not waste time. In order to menace Pennsylvania while moving away from Washington, he had to rest his line upon the valley of the Shenandoah, that route flanked by
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Pennsylvania (Pennsylvania, United States) 12,690 44 2 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.