{"nrhp_refnum":"94000978","name":"Heck, John, House","other_names":["Rawson Residence"],"category":"building","location":{"address":"1225 S. Hamilton St.","address_restricted":false,"city":"Lockport","county":"Will County","state":"IL","lat":41.58522347100006,"lon":-88.05816947699998,"geom_source":"nps_gis"},"listed_date":"1994-08-16","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story limestone house at 1225 South Hamilton in Lockport, Will County, Illinois, built about 1867 by John Heck, with Greek Revival and Italianate detailing.","why_significant":"The nomination argues the house is locally significant under Criterion C as an excellent example of a mid-19th century native limestone house with Greek Revival and Italianate details. It shows distinctive limestone construction and workmanship, a symmetrical design, an elaborate entry with sidelights and transom, and a low-pitched hip roof. It also reflects Lockport's limestone building tradition tied to the I and M Canal.","narrative":"Built around 1867 on a corner lot in Lockport, Illinois, this two-story house is made of locally quarried limestone, with rock-faced walls laid in regular courses and dressed stone quoins, sills and lintels. Its symmetrical front, six-panel door with sidelights and transom, low hip roof and dentils reflect Greek Revival design, while paired brackets and Italianate woodwork were added in the 1870s. John Heck, a Canadian-born contractor who came to Lockport during the Illinois and Michigan Canal boom, built it as his home. A stone addition on the south followed in the late 1860s, and a small frame addition was added at the rear in 1946, when the house was briefly divided into apartments. Later owners removed the apartment partitions and dropped ceilings, leaving original woodwork, stairway and pocket shutters. The house is considered locally significant for architecture and as an example of the area's limestone building tradition.","period_of_significance":"C. 1867 - C. 1870s","architect_builder":"Heck, John, Builder","architectural_style":"Greek Revival; Italianate","criteria":["C"],"status_note":"Described as in excellent condition and still used as a single dwelling; remains largely true to its original design apart from a small rear addition.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:37.492691-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/13/8943/28894313/content/electronic-records/rg-079/NPS_IL/94000978.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/94000978/f1acc89315-800.webp","url_1600":"https://nationalhistoricalregister.com/media/94000978/f1acc89315-1600.webp","licence":"CC BY-SA 3.0","author":"Teemu08 at en.wikipedia","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:JohnHeckHouse.JPG\" rel=\"noopener\">Teemu08 at en.wikipedia</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:JohnHeckHouse.JPG"},"district":{"nrhp_refnum":"11000907","name":"Chicago Sanitary and Ship Canal Historic District","url":"https://nationalhistoricalregister.com/districts/illinois/chicago-sanitary-and-ship-canal-historic-district-11000907/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28894313","wikipedia":"https://en.wikipedia.org/wiki/John_Heck_House","wikidata":"https://www.wikidata.org/wiki/Q6238498"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/will-county/heck-john-house-94000978/"}