Statistics for occurrence #1 of “Potomac” in entry key-francis-scott of Harper's Encyclopedia of United States History:

...nted him permission. In company with John S. Skinner, a well-known citizen of Baltimore, he went in the cartel-ship Minden, under a flag of truce. They found the British ships at the mouth of the Potomac , preparing to attack Baltimore. Cochrane agreed to release Beanes, but refused to allow him or his friends to return then. They were placed on board the Surprise, where they were courteous...
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.