Statistics for occurrence #1 of “Harper's Ferry” in chapter 15, section c.25.98, page 72 of Southern Historical Society Papers, Volume 12.:

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and were rifled with three grooves, after the manner of Parrott. The army in observation at Harper's Ferry , and that at Manassas, were supplied with old batteries of six-pounder guns and twelve-pounder Howitzers. A few Parrott guns purchased by the State of Virginia were with Magruder at Big Bethel. ...

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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Harper's Ferry (West Virginia, United States) 10,974 110 304 0 0 user votes

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