{"nrhp_refnum":"83004338","name":"Sidney Walnut Avenue Historic District","other_names":[],"category":"district","location":{"address":"Walnut Ave. from Poplar to Michigan Sts., and 228, 228 1/2, and 238 W. North St.","address_restricted":false,"city":"Sidney","county":"Shelby County","state":"OH","lat":40.28676640500004,"lon":-84.16026508099998,"geom_source":"nps_gis"},"listed_date":"1983-12-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A residential historic district of fifteen houses on a small hill northwest of downtown Sidney, Shelby County, Ohio, along Walnut Avenue and a few lots on North Street. The houses date mostly from 1890-1910, with the earliest from 1847.","why_significant":"The district holds an excellent collection of late nineteenth century residential styles, including Queen Anne, Italianate, Greek Revival and a Scottish-castle replica. It also shows how the hilltop became the elite street of Sidney as the town grew from a rural county seat into a banking, commercial and industrial city. Bankers, businessmen and manufacturers built or remodeled their homes there, mainly between 1880 and 1910.","narrative":"Fifteen houses crowd a small hill northwest of downtown Sidney, Ohio, along Walnut Avenue and North Street. Most were built or remodeled between 1890 and 1910, when Sidney grew from a rural county seat and market center into a banking, commercial and industrial city. The earliest is a Southern Colonial house from 1847 built by Thomas Stephenson, who arrived in Shelby County in 1825. Later houses range from Greek Revival and Italianate to elaborate Queen Anne mansions, a Four-Square, a Dutch Colonial remodel and a 1913 bungalow. The best known is Bonneyconnellan Castle, built in 1889 by school furniture manufacturer John Loughlin as a replica of a Scottish castle, with three battlemented stone towers. Other owners included store, steel scraper, churn and grain mill proprietors, and members of the Wagner family, who held manufacturing, brewing and banking interests. The district is recognized for its architecture and for showing how the hilltop became the town's elite residential street.","period_of_significance":"1847-1913","architect_builder":null,"architectural_style":"Queen Anne, Italianate, Greek Revival, Southern Colonial, American Four-Square, Dutch Colonial, Bungalow","criteria":["A","C"],"status_note":"Condition listed as excellent, good and fair; the area is undergoing some renovation as owners restore the hilltop, with no intrusions noted.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:14.21401-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/83004338.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83004338/1adf1c9bfa-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83004338/1adf1c9bfa-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Sidney_Walnut_Avenue_Historic_District.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Sidney_Walnut_Avenue_Historic_District.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71991317","wikipedia":"https://en.wikipedia.org/wiki/Sidney_Walnut_Avenue_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q7509403"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/shelby-county/sidney-walnut-avenue-historic-district-83004338/"}