Statistics for occurrence #1 of “Brownsville, Pa.” in chapter 1.4 of Southern Historical Society Papers, Volume 8.:

...o are so willing to believe anything against them, of having authorized the use in military warfare of such atrocious and barbarous missiles as explosive and poisoned musket or rifle balls. H. E. H. Brownsville, Pa. , September 1, 1879.
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Brownsville, Pa. (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.