{"nrhp_refnum":"100006872","name":"Witwer House","other_names":[],"category":"building","location":{"address":"504 North 1st St.","address_restricted":false,"city":"Rockford","county":"Winnebago County","state":"IL","lat":42.272151000000065,"lon":-89.08547899999996,"geom_source":"nps_gis"},"listed_date":"2021-08-26","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":null,"wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/illinois/winnebago-county/witwer-house-100006872/"}