The Carl and Betty Pforzheimer glass art ephemera is a collection of ephemera about studio glass art and artists. Some of the materials were found within the Pforzheimers' print items donated in 2022, and some were given to the Pforzheimers by others. The ephemera includes mailers, brochures, auction notices, newspaper and magazine clippings, items printed out from the internet, photographs, and other miscellaneous items.

The Essex County ephemera collection is an artificial collection of printed ephemera that are more general in creation and intended use (for example, an advertisement for a boiler versus the manual for its use). Ephemera from all towns in Essex County are represented in this collection.