Hempstead Town Archives

Huntington Historical Society (Resource Center and Archives)

The Historical Society of Greater Port Jefferson

Historical Society of Islip Hamlet

The Historical Society of the Massapequas

Lake Ronkonkoma Historical Society

Levittown Historical Society & Museum

Locust Valley Historical Society

Long Beach Historical and Preservation Society

Lloyd Harbor Historical Society

Malverne Historical and Preservation Society

Mastic Peninsula Historical Society

Mattituck-Laurel Historical Society and Museum

Miller Place-Mount Sinai Historical Society

Montauk Historical Society

Moriches Bay Historical Society

Northport Historical Society

North Shore Historical Museum

Ocean Beach Historical Society

Oyster Bay Historical Society