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

A collection of 20 digitized reels of microfilmed primary source materials relating to the history and early years of the Holland Land Company, with a focus on materials detailing the history and development of Western New York. The original materials are held by the Gemeentelijke Archiefdienst van Amsterdam (Municipal Archives of Amsterdam) and were microfilmed as a part of the Holland Land Company Project.
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.
Legal manuscripts of early Huntington, NY.