{"nrhp_refnum":"72000252","name":"Locke House and Barn","other_names":["Locke Home and Barn"],"category":"building","location":{"address":"19960 W. Elliott Rd.","address_restricted":false,"city":"Lockeford","county":"San Joaquin County","state":"CA","lat":38.16463982800008,"lon":-121.15078034699997,"geom_source":"nps_gis"},"listed_date":"1972-06-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Agriculture","Military"],"significance_levels":["local"],"summary":{"what_it_is":"A brick house with a three-story water tower and a brick-and-earth barn on a ranch property of about 5 acres at 19960 W. Elliott Road, Lockeford, San Joaquin County, California. The house was built in 1858 in the original form, and the barn dates to 1852, with later research revising these dates.","why_significant":"The property was the home and ranch of Dr. Dean Jewett Locke, a physician-rancher for whom the town of Lockeford was named and who helped organize schools, churches and temperance societies. The barn served as an armory for the Mokelumne Light Brigade militia and as a community hall and church meeting place. The nomination stresses its military, community and pioneer ranching associations rather than outstanding architectural design.","narrative":"Locke House and Barn is a ranch property near Lockeford, California, centered on a two-story brick house with a three-story water tower and a large barn built partly of adobe and brick. Dr. Dean Jewett Locke, who arrived in California in 1849, built the property and practiced medicine in Lockeford for about thirty years while ranching. The town was laid out on his ranch and named for the family. The house has 22 rooms, locally kilned brick walls and original window glass. The barn's upper floor served as a granary and public hall, where the Sons of Temperance organized and Congregationalists held services in the early 1860s. It also housed the Mokelumne Light Brigade, a local militia company formed in 1863. Later research corrected the construction dates and identified the barn's walls as rammed earth rather than adobe. The nomination ties the property to pioneer ranching and community life, and notes the barn needs restoration.","period_of_significance":"19th Century (specific dates 1858, 1887, 1852)","architect_builder":"Dean Jewett Locke, owner and builder","architectural_style":null,"criteria":[],"status_note":"The house is occupied and in fair condition. The barn is deteriorated, with a collapsed rear wall and a weakened staircase and floor posts.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.794458-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/72000252.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123861397","wikipedia":"https://en.wikipedia.org/wiki/Locke_House_and_Barn","wikidata":"https://www.wikidata.org/wiki/Q65121165"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-joaquin-county/locke-house-and-barn-72000252/"}