{"nrhp_refnum":"84003306","name":"Thomas Marble Quarry Houses","other_names":[],"category":"building","location":{"address":"Quarry Lane","address_restricted":false,"city":"West Whiteland","county":"Chester County","state":"PA","lat":40.020980684500046,"lon":-75.63822229296159,"geom_source":"nps_gis"},"listed_date":"1984-08-02","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Three stone structures remaining from the Thomas Marble Quarry in West Whiteland Township, Chester County, Pennsylvania: two quarry workers' houses and the Quarry Master's House, along with quarry ruins and lime kiln vestiges. The quarry opened near Oaklands in 1833.","why_significant":"The houses are regarded as examples of vernacular housing built to shelter quarry workers, a type described as rare in the agricultural township. The quarry is significant for its association with marble supplied to important buildings, including Girard College in Philadelphia, designed by Thomas U. Walter, and the Bank of Chester County in West Chester.","narrative":"Built of locally quarried stuccoed stone near Oaklands in West Whiteland Township, these three structures are the surviving remnants of the Thomas Marble Quarry, which opened in 1833. Two identical workers' houses, each divided to serve two families, have double entrances and a shared central chimney, with plain plastered interiors and stairways rising from basement to attic. The Quarry Master's House was a banked, one-story building with a loft used as the quarry office. The quarry supplied marble for Girard College in Philadelphia, designed by Thomas U. Walter, and for the Bank of Chester County in West Chester, built 1836-37. It was worked until 1844, reopened in 1867 under steam power, and was later connected to the Chester Valley Railroad. The houses are valued for their rare survival as worker housing in a mostly agricultural township, and for their connection to a quarry whose marble was used in several important Delaware Valley buildings.","period_of_significance":"1820-1839","architect_builder":null,"architectural_style":"Vernacular","criteria":["A","C"],"status_note":"Each worker's house has been converted to a single family residence with some alteration and additions; the quarry is filled with water and was used as a private swim club for many years.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.556957-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/84003306.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/84003306/9f521e95b9-800.webp","url_1600":"https://nationalhistoricalregister.com/media/84003306/9f521e95b9-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Thomas_Quarry_House_Chesco_PA.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Thomas_Quarry_House_Chesco_PA.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71992718","wikipedia":"https://en.wikipedia.org/wiki/Thomas_Marble_Quarry_Houses","wikidata":"https://www.wikidata.org/wiki/Q7792169"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/chester-county/thomas-marble-quarry-houses-84003306/"}