{"nrhp_refnum":"85002291","name":"Sibley, Hiram, Homestead","other_names":[],"category":"building","location":{"address":"29 Sibley Rd.","address_restricted":false,"city":"Sibleyville","county":"Monroe County","state":"NY","lat":42.96940460500005,"lon":-77.61494640584633,"geom_source":"nps_gis"},"listed_date":"1985-09-12","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A wood-frame Federal style farmhouse at 29 Sibley Road in Sibleyville, town of Mendon, Monroe County, New York, built c. 1827-1832 by Hiram Sibley. The nominated 25-26 acres also include the ruins of an early nineteenth-century grist mill.","why_significant":"The nomination argues the house is an outstanding example of early nineteenth-century Federal residential architecture in the Genesee region, with finely crafted detail. It is also tied to Hiram Sibley, a financier and philanthropist and founding partner of Western Union. The site was where his first milling and manufacturing ventures produced the capital for that company.","narrative":"Set on a rural bluff-edged parcel beside Honeoye Creek in Sibleyville, this wood-frame farmhouse was begun by Hiram Sibley around 1827 and finished by about 1832. Its Federal style shows in a pedimented facade with a lunette, an elliptical fanlight over the entrance, slender colonnettes and delicate cornice moldings. Inside, each of the eight fireplaces has a different mantel, and several original details survive. The house was moved about a thousand feet north in 1928 when Sibley Road was widened, after Sibley's grandson Harper Sibley repurchased it, and sympathetic additions followed in 1942. Sibley ran his first mill and manufacturing ventures here before moving to Rochester in 1843. Those ventures financed his later role in founding Western Union and building a transcontinental telegraph line. The property also holds the foundation ruins and arched mill race of his early grist mill, the only remains of the mill complex.","period_of_significance":"c. 1827-1832","architect_builder":"unknown (house built by Hiram Sibley; 1942 additions designed by Rochester architect William G. Kaelber)","architectural_style":"Federal","criteria":[],"status_note":"Occupied as a private residence; condition listed as excellent, altered and moved (1928).","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:44.922523-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/85002291.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75318936","wikipedia":"https://en.wikipedia.org/wiki/Hiram_Sibley_Homestead","wikidata":"https://www.wikidata.org/wiki/Q5769285"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/monroe-county/sibley-hiram-homestead-85002291/"}