Statistics for occurrence #1 of “Potomac river” in chapter 1.18 of Southern Historical Society Papers, Volume 23.:

... entire detachment of the cavalry from the rest of the army. To obey the order Stuart had to pass through the Bull Run mountains across the enemy's line of march from opposite Fredericksburg to the Potomac river , if the way was open. That line of march was east of the Bull Run mountains. The cavalry under Stuart was on the east side of the Blue Ridge, and the enemy was already known to be assembling on ...

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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Potomac River (United States) 286 0 0 0 0 user votes
Potomac River (Maryland, United States) 2 0 0 0 0 user votes
Potomac River (Maryland, United States) 2 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.