SUMMER HOURS: The Library CLOSES at 5 PM on Fridays and is CLOSED on Sundays for the Summer.
The Library will be CLOSED on Sunday and Monday, September 1 & 2 for Labor Day.
Monday-Thursday: 9:30 AM-9:00 PM
Friday & Saturday: 9:30 AM-5:00 PM
Genealogical & Historical Societies in New York City and State
Historic Map Works
Historical Societies in Nassau County
Historical Societies in Suffolk County
Historical Society of Greater Port Jefferson
Long Island History Journal
Miller Place-Mount Sinai Historical Society
New York City Transit History
New York Heritage Digital Collection
Suffolk County Historic Documents Library
Suffolk County Historical Society