Statistics for occurrence #1 of “Potomac” in chapter 6 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.:

...re Fort Runyon, at the land end of the approach of Long Bridge, and Fort Corcoran, covering the approach to the aqueduct. On the night of May 23, 1861, three columns of Federal soldiers crossed the Potomac , one by the aqueduct, one by Long Bridge, and one by water to Alexandria. The smooth-bore guns in the armament of Fort Corcoran were two 8-inch howitzers en barbette. The rifled guns consisted of t...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Potomac (Illinois, United States) 2 0 0 0 0 user votes
Potomac (Maryland, United States) 1 0 1 0 0 user votes
Potomac (Montana, United States) 0 0 0 0 0 user votes
Potomac (United States) 0 0 0 0 0 user votes

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