{"nrhp_refnum":"76001494","name":"Hayner, Mary Jane, House","other_names":[],"category":"building","location":{"address":"301 W. Main St.","address_restricted":false,"city":"Troy","county":"Miami County","state":"OH","lat":40.04079884600003,"lon":-84.20601284899999,"geom_source":"nps_gis"},"listed_date":"1976-01-30","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A mansion at 301 West Main Street in Troy, Miami County, Ohio, built in 1914 for Mary Jane Hayner by the Allyn Company of Cincinnati. It is clustered around a formal garden court and later served as the Troy public library.","why_significant":"The nomination presents the house as an irreplaceable example of opulent, high-quality architecture, built with craftsmen imported from Europe. It is also tied to education, since Mary Jane Hayner willed it to the Board of Education for educational purposes, and it housed the public library and historical society archives. The form notes it is valued locally and considered threatened.","narrative":"Built in 1914 on West Main Street in Troy, Ohio, this mansion was commissioned by Mary Jane Hayner after the death of her husband William, a wealthy distiller who left an estate of three million dollars. The Allyn Company of Cincinnati constructed it, using masons and glaziers brought from Europe. The two-and-one-half-story house wraps around a formal garden court and combines native limestone, an arcaded cloister porch, half-timbered walls, dark oak mullion windows with tracery, and a tile roof. A carriage house and trellised garden house complete the grounds. Inside, pilaster-lined halls meet at columned peristyles, and main rooms have coffered ceilings and marble mantels. Mrs. Hayner left the property to the Board of Education for educational purposes, and it became the Troy public library and historical society archives. When the nomination was written, a new library was being built, funds were short, and the building's future was uncertain, though local attachment to continued public use was strong.","period_of_significance":"1914","architect_builder":"Allyn Company of Cincinnati","architectural_style":"Eclectic; variously called Tudor, Norman Romanesque Revival, or Spanish Colonial Revival and Prairie Style","criteria":[],"status_note":"Listed as in excellent condition and occupied; used as the public library and historical society archives, with a new library under construction and the house's future use uncertain and considered threatened.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:10.435627-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/76001494.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76001494/7fd00fbfdb-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76001494/7fd00fbfdb-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Mary_Jane_Hayner_House.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Mary_Jane_Hayner_House.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71990321","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q138589592"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/miami-county/hayner-mary-jane-house-76001494/"}