{"nrhp_refnum":"79002218","name":"Henderson, Dr. William, House","other_names":["Fox House"],"category":"building","location":{"address":"31 E. Main St.","address_restricted":false,"city":"Hummelstown","county":"Dauphin County","state":"PA","lat":40.26519819200007,"lon":-76.70702884199994,"geom_source":"nps_gis"},"listed_date":"1979-05-14","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story brick Federal style town house at 31 East Main Street in Hummelstown, Dauphin County, Pennsylvania, built in 1829 by builders Dierdorf and Pamler.","why_significant":"The nomination describes it as an excellently preserved example of a Federal-style town house, a style far more common in Philadelphia than in central Pennsylvania. It is regarded as perhaps the finest brick townhouse of its type in Hummelstown, and it is associated with Dr. William Henderson, a local physician who practiced there until his death in 1849.","narrative":"Built in 1829 by the builders Dierdorf and Pamler, whose names are carved into the stone lintel above the front door, this three-story brick town house stands on a lot in Hummelstown that was once part of the original town plan. Its common-bond brick walls, Hummelstown brownstone sills and lintels, six-over-six windows and heavy dentilled cornice are characteristic of the Federal style. Inside, original flooring, plaster, fireplaces and a walnut stair survive largely intact. The house was built for Dr. William Henderson, a physician who had set up practice in the town after graduating from the University of Pennsylvania, and it was often called a mansion because of its size. Its restrained, well-kept interior and exterior make it one of the finest examples of brick townhouse design in the town, a style more typical of Philadelphia than of central Pennsylvania.","period_of_significance":"1829","architect_builder":"Dierdorf and Pamler (builders)","architectural_style":"Federal","criteria":["C"],"status_note":null,"vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:29.681099-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/79002218.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79002218/e4e2aa3ddd-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79002218/e4e2aa3ddd-1600.webp","licence":"CC0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Henderson_House_DauphCo_PA.jpg\" rel=\"noopener\">Smallbones</a>, <a href=\"http://creativecommons.org/publicdomain/zero/1.0/deed.en\" rel=\"license noopener\">CC0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Henderson_House_DauphCo_PA.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71995904","wikipedia":"https://en.wikipedia.org/wiki/Dr._William_Henderson_House","wikidata":"https://www.wikidata.org/wiki/Q5304474"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/dauphin-county/henderson-dr-william-house-79002218/"}