{"nrhp_refnum":"82004982","name":"Hawkins-Nimocks Estate-Patricio Ontiveros Adobe","other_names":["Slusher Estate"],"category":"district","location":{"address":"12100 Telegraph Rd.","address_restricted":false,"city":"Santa Fe Springs","county":"Los Angeles County","state":"CA","lat":33.939421855000035,"lon":-118.07710343699995,"geom_source":"nps_gis"},"listed_date":"1987-12-31","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Historic - Non-Aboriginal","Exploration/Settlement","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A 6.7-acre site at 12100 Telegraph Road in Santa Fe Springs, Los Angeles County, California, holding the foundations of the early 1800s Patricio Ontiveros Adobe and the remains of the 1880s Hawkins-Nimocks garden estate.","why_significant":"The adobe foundations are unusually large and sit in an area not disturbed by modern urban growth, so the buried deposits can yield data on early Southern California life, trade and Mission-related industry. The later estate, linked to early settler J.E. Fulton, was one of the first and most extensive garden ranches in Los Angeles County, with early decorative concrete work and carob trees important to the carob industry.","narrative":"Two layers of Southern California history sit on this Santa Fe Springs property. The earlier is the Patricio Ontiveros Adobe, a three-room structure about 30 meters long whose cobble and boulder foundations survive. Probably occupied by the Ontiveros family between 1811 and 1814, it was linked to Mission San Juan Capistrano and abandoned after the family left in 1834-1835. Excavations recovered large amounts of cattle bone, Tizon Brown pottery, Majolica and Chinese ceramics, giving evidence of butchering, trade and diet. The later layer is the Hawkins-Nimocks Estate, a garden ranch begun in the 1880s on land once owned by J.E. Fulton, founder of Fulton Wells. It retains concrete fountains, urns and planters, a trellis, a tank house and aged carob trees whose cuttings helped start the commercial carob industry. Together they show settlement from the Mission era to the early twentieth century.","period_of_significance":"1809-1920's","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Adobe survives as intact foundations (ruins); estate buildings are in fair condition, ranging from good to deteriorated, and the property is held in trust.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:27.811147-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/82004982.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123859186","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q59315139"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/los-angeles-county/hawkins-nimocks-estate-patricio-ontiveros-adobe-82004982/"}