{"nrhp_refnum":"74001809","name":"Montgomery House","other_names":[],"category":"building","location":{"address":"W. Main St.","address_restricted":false,"city":"Claysville","county":"Washington County","state":"PA","lat":40.115898677000075,"lon":-80.41590813999994,"geom_source":"nps_gis"},"listed_date":"1974-10-25","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A 3 1/2-story Second Empire style domestic building with a four-story roof tower in Claysville, Washington County, Pennsylvania. It was built in 1880 by Robert Porter, a lumber mill owner.","why_significant":"The nomination argues the house is a notable example of late Victorian Second Empire design, combining remnants of the earlier Italianate period with lavish mansard roof, ornamentation and trim. It states the house is in an unusually intact state of preservation and is an important contribution to the architectural development of Washington County.","narrative":"Built in 1880 in Claysville, Washington County, Pennsylvania, the Montgomery House is a three-and-a-half-story domestic building with a four-story roof tower. Its builder, Robert Porter, was a lumber mill owner who spent two years working on the interior and exterior trim. The house is a clear expression of the Second Empire style, with a mansard roof bearing sloping sides and dormers on the front and side elevations, and it retains remnants of the earlier Italianate period. Its bay windows, veranda and incised ornament give the facade a strong play of projecting and receding masses. Horizontal Novelty siding covers the walls, and the curved glass plates in the mansard tower dormers are all intact. The house is regarded as an important contribution to the architectural development of Washington County and reflects the late Victorian taste for richly decorated facades made possible by mechanized ornament production.","period_of_significance":null,"architect_builder":"Robert Porter (builder)","architectural_style":"Second Empire","criteria":["C"],"status_note":"Described as being in a state of excellent preservation and unaltered, at its original site.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:29.01544-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/74001809.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/74001809/4d5d2ac78f-800.webp","url_1600":"https://nationalhistoricalregister.com/media/74001809/4d5d2ac78f-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Montgomery_House_in_Claysville.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Montgomery_House_in_Claysville.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71995059","wikipedia":"https://en.wikipedia.org/wiki/Montgomery_House_(Claysville,_Pennsylvania)","wikidata":"https://www.wikidata.org/wiki/Q6905737"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/washington-county/montgomery-house-74001809/"}