Items in New York Heritage are organized into collections, which provide additional context for understanding their significance and meaning.

Books, photographs, memoribilia, and other documents from the Mastic-Moriches-Shirley Community Library.
Historic photographs of various military installations on Montauk.
Historic photographs and maps showing land development in Montauk.
A collection of correspondence by Gertrude Herdle, former Director of the Memorial Art Gallery. Many of the letters relate to her travels in Europe, especially during the 1920s.
This collection consists of issues of the Tatler dating between 1928 and 2015.