Columbia subject headings:
Architecture, Domestic--New York (State)--Long Island.
Historic buildings--New York (State)--Long Island.
Long Island (N.Y.)--Biography.
Long Island (N.Y.)--Social life and customs.
Mansions--New York (State)--Long Island.
Harvard subject headings:
Architecture, Domestic--New York (State)--Long Island.
Historic buildings--New York (State)--Long Island.
Long Island (N.Y.)--Biography.
Long Island (N.Y.)--Social life and customs.
Mansions--New York (State)--Long Island.
Princeton subject headings:
Architecture, Domestic--New York (State)--Long Island.
Historic buildings--New York (State)--Long Island.
Long Island (N.Y.)--Biography.
Long Island (N.Y.)--Social life and customs.
Mansions--New York (State)--Long Island.