Collections Research

The Mercer Museum and Fonthill Castle welcome researchers who make appointments to study the artifact collections. The standard museum admission fee applies to these requests. However, the museum reserves the right to charge an additional Supervision Fee for requests requiring an extensive amount of staff time.

For researchers unable to make an on-site appointment, the Curatorial Department will conduct limited research in our catalog files and provide photocopies of relevant records. A Service Fee of $25.00 for the first 15 pages and $.40 for each page will be charged. This service must be pre-paid with checks made out to the Bucks County Historical Society – credit cards are also accepted. Direct inquiries to: Collections Manager, BCHS, 84 South Pine Street, Doylestown, PA 18901, 215-345-0210 ext.119, or e-mail at


Henry Mercer was 51 when he began building the first of his three concrete structures, his home Fonthill, 1908-1910.
Rollo's Fact 1

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Please note that Fonthill Castle will close early on Friday, October 1, & Saturday, October 2 for private events. On both days the last tour will take place at 2pm. Please see our mask recommendations here.