Search the Catalog

Interested in delving more deeply into the collections? Click on the images below to explore our online catalogs!

The catalogs provide information about thousands of artifacts, books, documents, and images in the collections of the Mercer Museum, Research Library, and Fonthill Castle. Only a small percentage of our collections are currently available online. However, we add hundreds of new items each year.




The Research Library of the Mercer Museum houses over 20,000 books, 2500 feet of county archives, over 12,000 images and more!
Rollo's Fact 9

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• The Mercer Museum will be closed on Tuesday, December 5, 2023 to prepare for our free Mercer Museum Holiday Open House starting at 7:00 p.m.

More information about this event can be found here.

• The Mercer Museum will be opening at 1:00 p.m. on Wednesday, December 6, 2023.

Full schedule information can be found here.