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

The Watertown City Directory digital collection contains a subset of the City Directories located in the Flower Memorial Library (Watertown, NY).
This collection includes correspondence, an autograph book, legal documents and photographs from the Westinghouse Family from 1833-1913.
The William N. Weeden Color Printing Manuscript is an inventor's hand-written account in 1886 of his discovery of a printing method that produced multi-color printing with one impression. The collection includes color prints generated by the process.