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

A collection of letters written by William Suydam during the Civil War.
Glass plate negatives taken by William Thompson Howell as he explored the New York Highlands.
Documents relating to Frederick Willie and his service in the Civil War.
The Wing/Roberts collection contains documents, letters, transcripts, photographs and glass plate negatives related to the Wing/Roberts Family of Glens Falls, New York.
Photographs and ephemera either donated or lent to the Nyack Library by Winston C. Perry, Jr. This includes images of local landscapes, architecture, people, and events.