{"nrhp_refnum":"73001390","name":"Cochran Farm","other_names":[],"category":"building","location":{"address":"2900 OH 129","address_restricted":false,"city":"Millville","county":"Butler County","state":"OH","lat":39.38824401800008,"lon":-84.65959040299998,"geom_source":"nps_gis"},"listed_date":"1973-07-16","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A farm group near Millville in Butler County, Ohio, centered on a T-shaped two-story brick farmhouse built about 1836 by James W. Cochran, with a limestone dairy and smokehouse and two wooden barns, on about 8 acres.","why_significant":"The nomination presents the essentially unaltered house, dairy and barns as a fine example of a mid-19th century farm group in southern Ohio. It also records the Cochran family's role in the area, including ownership of the Millville Mill.","narrative":"Near Millville in Butler County, Ohio, this farm group is built around a T-shaped, two-story brick farmhouse completed about 1836 by James W. Cochran. The house is five bays wide with a central doorway and six-over-six windows. Its limestone foundation came from Indian Creek on the property, the bricks were handmade, and the lumber was cut on site. Inside, most woodwork is walnut, and a circular staircase rises from the center hall. A two-story limestone dairy and smokehouse stands to the north, with a bell cupola. A wood bank barn and a corn crib and storage barn complete the group. The Cochran family arrived from Pennsylvania in 1814 and later bought the Millville Mill, which James W. Cochran took over. The property was recognized because the house, dairy and barns remain essentially unaltered and illustrate a mid-19th century farm group in southern Ohio. A proposed power transmission line east of the house was noted as a concern.","period_of_significance":"19th Century (specific date ca. 1836)","architect_builder":"James W. Cochran (builder of the farmhouse)","architectural_style":null,"criteria":[],"status_note":"Condition is given as good and altered, and the property is private and occupied as a residence. The nomination notes a proposed electric transmission line east of the house as a threat.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:09.613401-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/73001390.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/73001390/2c34f51c9a-800.webp","url_1600":"https://nationalhistoricalregister.com/media/73001390/2c34f51c9a-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Cochran_Farmhouse_from_east.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Cochran_Farmhouse_from_east.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71986920","wikipedia":"https://en.wikipedia.org/wiki/Cochran_Farm","wikidata":"https://www.wikidata.org/wiki/Q5139420"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/butler-county/cochran-farm-73001390/"}