{"nrhp_refnum":"06000679","name":"Jefferson Park","other_names":["Thomas Jefferson Memorial Park","Jefferson Park #2","Park #94"],"category":"district","location":{"address":"4822 N. Long Ave.","address_restricted":false,"city":"Chicago","county":"Cook County","state":"IL","lat":41.97039226200005,"lon":-87.76391207754044,"geom_source":"nps_gis"},"listed_date":"2006-08-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Entertainment/Recreation","Social History","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Thomas Jefferson Memorial Park (originally Jefferson Park) is a 7.16-acre public park district at 4822 North Long Avenue on Chicago's Northwest Side, begun in 1921 by the Jefferson Park District and expanded and improved in 1930.","why_significant":"The park is significant for its role in recreation and social history as a neighborhood park created by one of Chicago's small independent park commissions. It is also significant for architecture, chiefly the 1930 Georgian Revival field house and Tool House designed by Clarence Hatzfeld. It includes the mid-1880s Esdohr House, believed to be the oldest surviving house in the neighborhood.","narrative":"Thomas Jefferson Memorial Park is a 7.16-acre public park on Chicago's Northwest Side, first opened in 1921 by the Jefferson Park District, one of 22 small park commissions merged into the Chicago Park District in 1934. Its first field house was the Esdohr House, a brick Italianate home from the mid-1880s that was moved onto the site and is thought to be the oldest surviving house in the neighborhood. In 1930 the district enlarged the grounds and hired architect Clarence Hatzfeld, who designed a two-story Georgian Revival field house, a brick Tool House, and the landscape plan with paths, a circular planter and a semicircular drive. The field house holds a gymnasium, assembly hall and clubrooms. The park was recognized for its role in neighborhood recreation and social life, for Hatzfeld's architecture, and for the integrity of its historic layout. A World War I memorial plaque is also part of the property. Later additions include a pool, a spray pool and fencing, which are non-contributing.","period_of_significance":"1921 to 1956","architect_builder":"Hatzfeld, Clarence, architect","architectural_style":"Georgian Revival","criteria":["A","C"],"status_note":"Still used as a park with recreation facilities, a field house and a swimming pool; the Esdohr House was moved within the park in 1921.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:37.105887-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/2/8910/28891002/content/electronic-records/rg-079/NPS_IL/06000679.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/06000679/24d143d76b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/06000679/24d143d76b-1600.webp","licence":"Public domain","author":"Orestek","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Jefferson_Park_in_Chicago.JPG\" rel=\"noopener\">Orestek</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Jefferson_Park_in_Chicago.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28891002","wikipedia":"https://en.wikipedia.org/wiki/Jefferson_Memorial_Park","wikidata":"https://www.wikidata.org/wiki/Q3176658"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/cook-county/jefferson-park-06000679/"}