{"nrhp_refnum":"08001170","name":"Rehnstrom, August and Margaretha, House","other_names":["Andover Historical Museum"],"category":"building","location":{"address":"418 Locust St.","address_restricted":false,"city":"Andover","county":"Henry County","state":"IL","lat":41.29510644900006,"lon":-90.29240318899997,"geom_source":"nps_gis"},"listed_date":"2008-12-10","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Exploration/Settlement","European"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story, five-bay Greek Revival frame house at 418 Locust Street in Andover, Henry County, Illinois, built in 1861 by harness maker August Rehnstrom. It now serves as the Andover Historical Museum.","why_significant":"The house is significant under Criterion A for its association with the settlement of Andover and its Swedish heritage. August Rehnstrom came to Andover in 1859 as a harness maker, and the house is tied to him and his wife Margaretha Berglof Rehnstrom. Local accounts say it also sheltered newly arrived Swedish immigrants. It is described as perhaps the most intact early home in Andover.","narrative":"Built in 1861 near the town park in Andover, Illinois, this two-story Greek Revival frame house was the home of August Rehnstrom, a harness maker recruited to the Swedish community, and Margaretha Berglof, whom he married in 1862. The five-bay house has heavy cornice boards, gable returns and six-over-six windows typical of the style. The Andover Historical Society bought it in 1967 and rehabilitated it in phases, adding a basement and new siding in 1976 and replacing windows in 1984. It is now a museum. A relocated summer kitchen and outhouse stand on the lot. The house was listed for its link to the settlement of Andover and its Swedish heritage. Andover grew as a Swedish community from the late 1840s, and local accounts say the Rehnstrom home sheltered Swedish immigrants until they found their own housing. The period of significance runs from 1861 to 1911, when August Rehnstrom died.","period_of_significance":"1861-1911","architect_builder":"Berglof, Eric","architectural_style":"Mid-19th Century / Greek Revival","criteria":["A"],"status_note":"Used as a museum (Andover Historical Museum), owned by the Andover Historical Society since 1967 and rehabilitated in phases from 1968 to 1984.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:37.801735-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/92/8929/28892992/content/electronic-records/rg-079/NPS_IL/08001170.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28892992","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q134580638"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/henry-county/rehnstrom-august-and-margaretha-house-08001170/"}