Statistics for occurrence #1 of “Potomac” in chapter 10 of Robert Lewis Dabney, Life and Commands of Lieutenand- General Thomas J. Jackson:

...r superior numbers at bay: and his guns maintained a precarious command over the channels of the two rivers. Around Washington, swarmed the Grand Army of General McClellan, upon both banks of the Potomac ; while its wings extended from the lower regions of the State of Maryland, to the Alleghanies. It was confronted by the army of General Joseph E. Johnston, with its right wing resting upon the Poto...
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

† 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.