{"nrhp_refnum":"85001879","name":"Clark, Dr., House","other_names":[],"category":"building","location":{"address":"21 N. Main St.","address_restricted":false,"city":"Mechanicsburg","county":"Champaign County","state":"OH","lat":40.072316959000034,"lon":-83.55677444299994,"geom_source":"nps_gis"},"listed_date":"1985-08-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Health/Medicine","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A two-story brick Italianate residence at 21 N. Main Street in Mechanicsburg, Champaign County, Ohio, built around the 1870s by Dr. Clark, a local physician.","why_significant":"The nomination finds it meets Criteria A and C. It represents Mechanicsburg's period of greatest growth (1870-1900), when professionals such as doctors built fine homes along North Main Street. It is also described as one of the best surviving examples of Italianate residential architecture in the village.","narrative":"This two-story brick house at 21 North Main Street in Mechanicsburg, Ohio, was built around the 1870s by Dr. Clark, a prominent and wealthy local physician. It rests on a coursed stone foundation and has a three-bay facade with a side-hall entry, double entry doors, segmental arched openings with stone hoodmolds, and a bracketed cornice with round frieze windows. A side porch with Ionic posts was added later. A board and batten garage sits to the rear. The house was listed because it reflects the village's period of greatest growth, from 1870 to 1900, when professionals were drawn to town. At least five doctors practiced in Mechanicsburg then, and several built fine homes along North Main Street. The house is considered one of the best surviving Italianate residences in the village and keeps the features most typical of the style. It stands next to the commercial district, at the start of the residential stretch of North Main.","period_of_significance":null,"architect_builder":"Built by Dr. Clark; architect and contractor not known","architectural_style":"Italianate","criteria":["A","C"],"status_note":"Still used as a residence; exterior condition described as good, with original character and integrity retained.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:15.191266-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/85001879.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/85001879/45ecc49218-800.webp","url_1600":"https://nationalhistoricalregister.com/media/85001879/45ecc49218-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Dr._Clark_House,_Mechanicsburg,_closeup.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Dr._Clark_House,_Mechanicsburg,_closeup.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71984536","wikipedia":"https://en.wikipedia.org/wiki/John_H._Clark_House","wikidata":"https://www.wikidata.org/wiki/Q6236754"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/champaign-county/clark-dr-house-85001879/"}