Statistics for occurrence #1 of “Federal Hill” in chapter 23 of Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 1.:

... occupied, as we have observed, by the Fifth New York regiment (Zouaves), under Colonel Duryee (who was appointed a brigadier on the 31st of August), and by their hands the strong works known as Fort Federal Hill were constructed. The turn of affairs in Maryland was disheartening to the conspirators. They had counted largely upon the active co-operation of its citizens in the important military movement...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Federal Hill (Maryland, United States) 83 28 1 0 0 user votes
Federal Hill (Connecticut, United States) 0 0 0 0 0 user votes
Federal Hill (Maryland, United States) 0 0 0 0 0 user votes
Federal Hill (Massachusetts, United States) 0 0 0 0 0 user votes
Federal Hill (Massachusetts, United States) 0 0 0 0 0 user votes
Federal Hill (Missouri, United States) 0 0 0 0 0 user votes
Federal Hill (New Hampshire, United States) 0 0 0 0 0 user votes
Federal Hill (New Jersey, United States) 0 0 0 0 0 user votes
Federal Hill (New York, United States) 0 0 0 0 0 user votes
Federal Hill (New York, 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.