{"nrhp_refnum":"79001978","name":"Mason House","other_names":[],"category":"building","location":{"address":"OH 393","address_restricted":false,"city":"Coal Run","county":"Washington County","state":"OH","lat":39.56383502600005,"lon":-81.58463689499996,"geom_source":"nps_gis"},"listed_date":"1979-11-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A story-and-a-half frame dwelling with clapboard siding at Coal Run, Washington County, Ohio, built in 1802 on a quarter-acre nominated parcel.","why_significant":"It is described as an unusually intact, unaltered example of very early Ohio settlement architecture, built a year before statehood. It follows the saltbox folk house type brought west by New England settlers, but was built as a single unit rather than with a later rear addition. Its unadorned exterior and uncompromised original interior woodwork make it a rare architectural survival.","narrative":"Built in 1802, this story-and-a-half frame house at Coal Run in Washington County, Ohio, is notable for how little it has changed. Clapboard covers the walls, and the foundation is cut sandstone with floor joists made of whole logs, some still bearing bark. The exterior is plain, with decoration limited to beveled and grooved corner boards. Inside, the original hardwood floors, paneled doors, built-in storage units and an enclosed winding staircase all survive, and no bathrooms or central heating have forced changes to the room plan. The house follows the saltbox folk type associated with New England, brought west by early settlers of southeastern Ohio. Unlike many Ohio houses that only look like saltboxes because of a later rear shed addition, the foundation and joists show this one was built as a single unit. It appears on the county tax records in 1802. Its first owners, and probably its builders, were Daniel Davis and Joseph Thompson, and Davis had served in the Fort Frye garrison at Waterford.","period_of_significance":"1802","architect_builder":"Daniel Davis and Joseph Thompson (first owners and probably builders)","architectural_style":"Saltbox folk house type; early settlement architecture","criteria":[],"status_note":"Condition marked good; the house has seen very little change since 1802, with original woodwork, floors and doors intact.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:12.517992-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/79001978.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79001978/f0831b68a1-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79001978/f0831b68a1-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Mason_House_at_Coal_Run.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Mason_House_at_Coal_Run.jpg"},"district":{"nrhp_refnum":"07000025","name":"Muskingum River Navigation Historic District","url":"https://nationalhistoricalregister.com/districts/ohio/muskingum-river-navigation-historic-district-07000025/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71991903","wikipedia":"https://en.wikipedia.org/wiki/Mason_House_(Coal_Run,_Ohio)","wikidata":"https://www.wikidata.org/wiki/Q6783588"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/washington-county/mason-house-79001978/"}