{"nrhp_refnum":"01000846","name":"Nelson, Thomas, House","other_names":[],"category":"building","location":{"address":"1231 Seymour Ln.","address_restricted":false,"city":"Peekskill","county":"Westchester County","state":"NY","lat":41.29678222900003,"lon":-73.91306462999995,"geom_source":"nps_gis"},"listed_date":"2001-08-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"An Italianate frame residence at 1231 Seymour Lane in Peekskill, Westchester County, New York, built around 1860 for attorney and politician Thomas Nelson. A small well house on the 1.67-acre site is also included.","why_significant":"The nomination argues the house is a distinctive, intact example of Italianate residential architecture in Westchester County under Criterion C. It shows the style's hallmarks, including a bracketed cornice, hip roof, large windows with decorative surrounds and a wrap-around porch. Inside, the original marble mantels, plasterwork and an unusual freestanding walnut staircase survive, and both exterior and interior retain a high degree of integrity.","narrative":"Built around 1860 in Peekskill, New York, this two-story Italianate house was constructed for Thomas Nelson, a New York City attorney and politician who had served as Chief Justice of the Oregon Territory's Supreme Court. The clapboard house has a slightly hipped roof, a bracketed wooden cornice, tall two-over-two windows with molded trim, and a one-story porch with paired posts and scrolled brackets that wraps around to the west side. Inside, a central hall holds an unusual freestanding walnut staircase, and the public rooms keep their plaster cornices, ceiling medallions and marble mantels. A small well house, likely of nineteenth-century origin, stands near the northeast corner. The property was listed for its architecture, as a well-preserved example of the villa-type homes built for the upper middle class in Westchester County's villages and small cities in the mid-nineteenth century. The original estate of about 8.5 acres was gradually subdivided, leaving the house on roughly 1.67 acres.","period_of_significance":"c. 1860","architect_builder":null,"architectural_style":"Late Victorian: Italianate","criteria":["C"],"status_note":"Still in use as a single dwelling; the form reports high integrity on both exterior and interior, with changes limited mainly to 1950s storm windows, a modernized kitchen and a 1950 garage.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:50.888404-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/01000846.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/01000846/32efb562b3-800.webp","url_1600":"https://nationalhistoricalregister.com/media/01000846/32efb562b3-1600.webp","licence":"CC BY-SA 4.0","author":"Magicpiano","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:PeekskillNY_ThomasNelsonHouse.jpg\" rel=\"noopener\">Magicpiano</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:PeekskillNY_ThomasNelsonHouse.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75323121","wikipedia":"https://en.wikipedia.org/wiki/Thomas_Nelson_House_(Peekskill,_New_York)","wikidata":"https://www.wikidata.org/wiki/Q7792706"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/westchester-county/nelson-thomas-house-01000846/"}