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

The Port Washington Library History Collection contains images from the planning and construction of the library in the mid-1960s to life and library activities that have taken place since that time.
The Henry Page Historical Files were collected by local historian Henry Page throughout his lifetime in Perry. They cover many topics, such as local businesses, organizations and events. Some photos are also of people of note. The collection covers the immediate Perry area as well as Silver Lake and Letchworth State Park.