island. See also Davids Island (New York) Geography and environment of New York City Postage stamps and postal history of the Confederate States#Prisoner of war prisons and camps References Notes Citations Further reading External links The Hart Island Project New York City Parks Department Hart Island webpage New York City Department of Corrections Hart Island webpage Islands of New York City Cemeteries in the Bronx Long Island Sound Hart Island Defunct prisons in New York City Buildings and structures in the Bronx Mass graves Islands of the Bronx Military facilities in the Bronx