{"nrhp_refnum":"86002891","name":"Dorrance Mansion","other_names":[],"category":"building","location":{"address":"300 Radcliffe St.","address_restricted":false,"city":"Bristol","county":"Bucks County","state":"PA","lat":40.095819135000056,"lon":-74.85367268099998,"geom_source":"nps_gis"},"listed_date":"1986-10-16","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story, three-bay rectangular brick Italianate residence at 300 Radcliffe Street in Bristol Borough, Bucks County, Pennsylvania, built in one section in 1862-63 on a lot running down to the Delaware River.","why_significant":"The nomination argues the mansion is an excellent example of residential Italianate architecture and the only example of that style in Bristol borough. Its urban riverfront setting, symmetrical grand facade and elliptical five-story rear tower distinguish it from other Italianate houses on the Delaware in Bucks County. It is also associated with John Dorrance, Sr., a leading Bristol citizen and owner of the Bristol Mills, and it retains its original interior features.","narrative":"Built in 1862-63 at 300 Radcliffe Street in Bristol Borough, this three-story brick house is an Italianate residence set on a lot that slopes down to the Delaware River. Its symmetrical front facade has sandstone window surrounds, rusticated quoins, a centered arched entrance with fanlight, and carved eave brackets under a flat roof broken by low cross gables. The rear is dominated by a three-story porch and a five-story elliptical tower that holds the circular main staircase. Interior woodwork is black walnut and mahogany, and the first-floor living room has a decorative plaster cornice and marble fireplaces. John Dorrance, Sr., who owned the Bristol Mills and held local office, commissioned the house, and he lived there only until his death in 1869. The nomination treats it as the only Italianate house in Bristol and one of the earliest mansions built by the industrialists who settled the borough. Its exterior and interior are described as largely unaltered.","period_of_significance":"1862-1863","architect_builder":null,"architectural_style":"Italianate","criteria":[],"status_note":"Sold in 1982 for use again as a residence after about sixty years of use by the Bristol Knights of Columbus; the document states it retains all original interior features.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:34.298724-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/86002891.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/86002891/79e6d97123-800.webp","url_1600":"https://nationalhistoricalregister.com/media/86002891/79e6d97123-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Dorrance_Bristol.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Dorrance_Bristol.JPG"},"district":{"nrhp_refnum":"87000665","name":"Bristol Historic District","url":"https://nationalhistoricalregister.com/districts/pennsylvania/bristol-historic-district-87000665/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71994765","wikipedia":"https://en.wikipedia.org/wiki/Dorrance_Mansion","wikidata":"https://www.wikidata.org/wiki/Q5298727"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/bucks-county/dorrance-mansion-86002891/"}