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

Personal papers of Maris B. Pierce, a Seneca Indian and graduate of Dartmouth College who went on to be an interpreter and recording secretary for Seneca delegations to Albany and Washington, D.C.
Heart's Delight Farm in Chazy, New York was a state-of-the-art farm in the early 20th century. This collection includes blueprints and maps depicting the farm and its buildings.