{"nrhp_refnum":"83002228","name":"Thompson Farm","other_names":["Pierson Farm"],"category":"building","location":{"address":"632 Chambers Rock Rd., London Britain Township","address_restricted":false,"city":"New London","county":"Chester County","state":"PA","lat":39.73169892100003,"lon":-75.78219528899996,"geom_source":"nps_gis"},"listed_date":"1983-07-14","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A farmstead in southern Chester County, Pennsylvania, near London Britain Township, consisting of a brick farmhouse, a stone bank barn, and three frame outbuildings (outhouse, chicken house, corncrib). The house core dates to 1833 with an 1857 addition.","why_significant":"The nomination argues the house and barn are important examples of rural building types that have survived with a high degree of integrity. The brick house is unusual for its period and local context in its brick construction and floor plan, and the barn is unusually large even by Chester County standards.","narrative":"Built in stages beginning in 1833 on a farm in southern Chester County near the Delaware and Maryland lines, the Thompson Farm includes a brick farmhouse, a large stone bank barn, and three frame outbuildings painted red. The house is two interlocking L-shaped sections, with the core built in 1833 and an addition dated 1857, marked by a lintel bearing the initials EMT for Ezra and Mary Thompson. The core has Flemish bond brick on the facade, a side hall double pile plan with corner fireplaces, and original six-panel doors with Dutch elbow locks. The barn measures about 80 by 80 feet and has unusual double pedimented doors. Its roof and frame are pegged, and the farmstead has no modern additions. The complex is regarded as an important survival of rural building in Chester County, with the house unusual for its period in brick construction and plan, and the barn unusually large for the area.","period_of_significance":"1800-1899","architect_builder":"Ezra Thompson","architectural_style":null,"criteria":["C"],"status_note":"Unaltered, original site; no modern additions to the farmhouse or barn.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.504464-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/83002228.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83002228/716a04662f-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83002228/716a04662f-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Thompsons_Farm_House_PA.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Thompsons_Farm_House_PA.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71996726","wikipedia":"https://en.wikipedia.org/wiki/Thompson_Farm_(London_Britain_Township,_Pennsylvania)","wikidata":"https://www.wikidata.org/wiki/Q7795728"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/chester-county/thompson-farm-83002228/"}