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

Elon Howard Eaton (1866-1935) was a noted ornithologist and author of Birds of New York. This collection includes papers related to his research, correspondence, and genealogical materials, as well as photographs of Eaton.
Items from the papers of historian Elsie Gutchess, including primary and secondary materials relating to the history of women in the United States.