{"nrhp_refnum":"84003490","name":"Hart Building","other_names":[],"category":"building","location":{"address":"26-30 W. 3rd St.","address_restricted":false,"city":"Williamsport","county":"Lycoming County","state":"PA","lat":41.24079465500006,"lon":-77.00185337999994,"geom_source":"nps_gis"},"listed_date":"1984-09-07","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"The Hart Building is a three-story corner commercial building in Williamsport, Lycoming County, Pennsylvania. It was constructed in 1895 and measures roughly fifty by eighty feet.","why_significant":"The nomination argues the building is significant as an example of the transition from nineteenth-century masonry bearing wall commercial buildings to twentieth-century steel frame and curtain wall structures. It is also significant for its association with Amos S. Wagner, an important Williamsport architect of the late nineteenth century.","narrative":"Built in 1895 in Williamsport, the three-story corner commercial building was designed by Amos S. Wagner, a local architect who had trained under Eber Culver and later practiced widely in north central Pennsylvania. Its steel and cast iron skeleton allowed a more open plan and a large glass storefront, which marked a shift away from load-bearing masonry construction. The steel frame is hidden behind buff brick, while the facade carries pressed brickwork, terra cotta, carved stone, wood sash, and pressed metal cornice and window trim. Elements such as the checkerboard brick surrounds and the arched carved stone Third Street entrance reflect the traditionalism of the period, even as the building's form looks forward. The building is regarded as a transitional work of the late nineteenth century. Its first story has been substantially altered, though the upper floors retain much of their original detailing.","period_of_significance":"1895","architect_builder":"Amos S. Wagner (architect)","architectural_style":null,"criteria":["C"],"status_note":"The first story storefronts have been altered, with buff brick infill and aluminum and glass replacement dating from c. 1950; the original signboard pediment was removed in the 1930s.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:32.299225-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/84003490.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/84003490/985c28cfa9-800.webp","url_1600":"https://nationalhistoricalregister.com/media/84003490/985c28cfa9-1600.webp","licence":"CC BY-SA 4.0","author":"Beyond My Ken","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Hart_Building_Williamsport.jpg\" rel=\"noopener\">Beyond My Ken</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Hart_Building_Williamsport.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71998762","wikipedia":"https://en.wikipedia.org/wiki/Hart_Building_(Williamsport,_Pennsylvania)","wikidata":"https://www.wikidata.org/wiki/Q5674102"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/lycoming-county/hart-building-84003490/"}