Statistics for occurrence #1 of “Allegheny” in chapter 8 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...rtook the duties of cleaning, repairing, preserving, and storing the tremendous quantities of war materiel that had accumulated. Fire-proof warehouses were constructed at Watervliet, Frankfort, and Allegheny arsenals, three great magazines were constructed at St. Louis Arsenal, and one each at Washington and Benicia arsenals. The Harper's Ferry Armory had suffered so much in the stress of war that it w...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Allegheny (United States) 2 0 0 0 0 user votes
Allegheny (North Carolina, 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.