{"nrhp_refnum":"82001420","name":"Mallory, Ogden, House","other_names":[],"category":"building","location":{"address":"410 Warren St.","address_restricted":false,"city":"Sandusky","county":"Erie County","state":"OH","lat":41.455443581000054,"lon":-82.70349026799994,"geom_source":"nps_gis"},"listed_date":"1982-10-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A small two-story Federal-style limestone dwelling at 410 Warren Street in Sandusky, Erie County, Ohio, built in 1841 by stone mason Ogden Mallory.","why_significant":"The nomination calls it Sandusky's only surviving small Federal limestone house. Similar houses once stood downtown but were demolished for commercial buildings. It was built by Ogden Mallory, a stone mason who also erected Grace Church in 1835, and other prominent Sanduskians lived there early in their careers.","narrative":"Built in 1841, this two-story limestone house at 410 Warren Street in Sandusky is the city's only surviving small Federal-style limestone dwelling. Its builder, Ogden Mallory, was a stone mason who had earlier erected Grace Church in 1835, and he died shortly after finishing the house. Similar stone houses once stood in the downtown area but were torn down as commercial buildings replaced them. The rectangular building has random ashlar walls, a rubble foundation, stone quoins, stone lintels and sills at each window, a stone water table across the front and a stone stoop. Its stepped gable roof ends still carry the four original chimneys, though the chimneys and foundation have been covered with cement. The recessed front entry has a transom but a modern door. Several prominent Sanduskians lived here early in their careers. The house sits close to the street in a residential area facing railway tracks.","period_of_significance":"1841","architect_builder":"Ogden Mallory (builder)","architectural_style":"Federal","criteria":[],"status_note":"In use as a dwelling; exterior and interior condition listed as good.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:14.332985-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/82001420.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71984890","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/erie-county/mallory-ogden-house-82001420/"}