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

Board meeting minutes, letters, and photographs of Half Hollow Hills Library.
Historic photographs of sculptor Harvey Fite and his works.
Pictures, architectural drawings, and ephemera of the Pratt House and Webb Institute.
This collection consists of issues of the yearbooks of the Richville Union School, the Dekalb Junction school and the Hermon school dating between 1937-1950 and issues of the Demon dating between 1954 and 2017.
This collection consists of issues of the Heuveltonian dating between 1941 and 2007.