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

This collection includes the papers of or relating to Rev. John Christopher Hartwick and the establishment of the Hartwick Seminary. The documents reflect the life of John Christopher Hartwick, and his work with the Lutheran Synod.
A collection of late 18th century and early 19th century maps, particularly of Western New York and Pennsylvania, created for the Holland Land Company.
The minute books from Red Hook's two societies for the detection and apprehension of horse thieves.