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

Papers relating to Civil War Union Officer William Henderson Baird and his family at the time of the Civil War.
A collection of letters written by William Suydam during the Civil War.
Documents relating to Frederick Willie and his service in the Civil War.
This collection is a collection of World War I-era postcards that were a gift to Union College from William Nelson Potter Dailey, a member of the class of 1884.