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

Correspondence between Alexander Hamilton and Aaron Burr and their seconds before the historic duel. The exchange of letters by the four participants -- Burr, Hamilton, Van Ness, and Pendleton -- preceding the duel took place from June 18 - July 9, 1804. Further correspondence and statements made after the duel, from July 11, 1804 Mar. 5, 1805, by Burr, Van Ness, and Pendleton are also included in the collection. Included among them are eye-witness accounts of the duel by Van Ness and Pendleton, the only living witnesses of the duel besides Burr himself.
A collection of correspondence and documents relating to Buffalo, New York native, and 13th President of the United States, Millard Fillmore.