New Castle Historical Society and MuseumThe New Castle Historical Society is housed in the 1867 home of Horace Greeley in downtown Chappaqua, NY 100 King Street Chappaqua , NY , 10514 Phone: (914)238-4666 41° 9' 32.7852" N, 73° 46' 16.8348" W See map: Google Maps Boscobel House and Gardens Cornwall Independence Day Committee Fireworks, Your Family, and New York State
