{"nrhp_refnum":"94001601","name":"Strawn, Jeremiah, House","other_names":[],"category":"building","location":{"address":"532 Congress St.","address_restricted":false,"city":"Ottawa","county":"LaSalle County","state":"IL","lat":41.346965099000045,"lon":-88.83350114499996,"geom_source":"nps_gis"},"listed_date":"1995-01-24","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A brick two-and-a-half story single-family house at 532 Congress Street in Ottawa, La Salle County, Illinois, built in three phases from about 1855 to the early 1870s. It is a Mid-19th Century front-gabled form with some Italianate details.","why_significant":"The nomination argues the house is a good example of Mid-19th Century front-gabled design combined with Italianate detailing, under Criterion C for architecture. It states the house is the only one in Ottawa that combines these two approaches and still keeps its integrity. Other comparable Ottawa houses are described as either Greek Revival or Italianate.","narrative":"Built in three phases between about 1855 and the early 1870s, this brick house at 532 Congress Street in Ottawa, Illinois, sits on a limestone foundation about five blocks east of downtown. The front two-and-a-half story section came first, followed by a two-story middle section and a one-story rear kitchen wing. Its front-gabled form, six-over-six windows with stone sills and lintels, sidelighted entry, and recessed arched panels with pilasters reflect mid-19th century design, while bracketed cornices and a small arched attic window add Italianate touches. Jeremiah Strawn, a retired farmer from Putnam County, bought the property in 1857 and is believed to have added the middle and rear sections. Ottawa's other houses of the period are described as either Greek Revival or Italianate, making this combination unusual locally. The house retains most of its original features and remains a single-family home, with a modern garage on the property.","period_of_significance":"c. 1855-c. 1870s","architect_builder":null,"architectural_style":"Mid-19th Century form with Italianate details","criteria":["C"],"status_note":"Described as in excellent condition, retaining most original features, and still used as a single dwelling.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:37.197941-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/5/8934/28893405/content/electronic-records/rg-079/NPS_IL/94001601.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/94001601/ec2572e716-800.webp","url_1600":"https://nationalhistoricalregister.com/media/94001601/ec2572e716-1600.webp","licence":"CC BY-SA 3.0","author":"IvoShandor","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Ottawa_IL_Jeremiah_Strawn_House1.jpg\" rel=\"noopener\">IvoShandor</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Ottawa_IL_Jeremiah_Strawn_House1.jpg"},"district":{"nrhp_refnum":"13000718","name":"Ottawa East Side Historic District","url":"https://nationalhistoricalregister.com/districts/illinois/ottawa-east-side-historic-district-13000718/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28893405","wikipedia":"https://en.wikipedia.org/wiki/Jeremiah_Strawn_House","wikidata":"https://www.wikidata.org/wiki/Q6180984"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/lasalle-county/strawn-jeremiah-house-94001601/"}