{"nrhp_refnum":"75001950","name":"Fort Sam Houston","other_names":["Port of San Antonio"],"category":"district","location":{"address":"N edge of San Antonio","address_restricted":false,"city":"San Antonio","county":"Bexar County","state":"TX","lat":29.463136005000024,"lon":-98.44782933299996,"geom_source":"nps_gis"},"listed_date":"1975-05-15","is_nhl":true,"nhl_designated_date":"1975-05-15","areas_of_significance":["Military"],"significance_levels":["national"],"summary":{"what_it_is":"A large military post district on the northeastern edge of San Antonio, Bexar County, Texas, begun in 1876 with the Quadrangle and expanded through several building groups into the early 20th century. It is owned by the U.S. government and remains an active Army installation.","why_significant":"Since 1879 the post has been the focal point of Army operations in the southwestern United States and has housed several major headquarters. It supplied the Rough Riders and the 1916 Pershing campaign, trained troops in World War I, and hosted early military aviation trials by Lt. Benny Foulois. Its surviving buildings represent nearly a century of military architecture.","narrative":"Fort Sam Houston is a military post on the northeastern edge of San Antonio, Texas. It began in 1876 on 40 acres with the Quadrangle, a limestone supply depot completed in 1879, and later grew to roughly 35,000 acres. The historic district centers on the Quadrangle and four groups of buildings added in the late 19th and early 20th centuries: the Staff Post, Infantry Post, Artillery Post and Cavalry Post. Limestone and brick officers' quarters, barracks, a 1909 chapel and a clock-faced watchtower survive in good condition, and many are still used. The post served as headquarters for the Department of Texas and later Army commands. It supplied the Rough Riders in 1898 and the 1916 campaign against Pancho Villa, trained troops in World War I, and was the site of Lt. Benny Foulois's early aerial experiments. Eisenhower lived in one set of quarters in 1941.","period_of_significance":"1876 to present","architect_builder":"Alfred Giles designed the Infantry Post sallyport building and adjoining barracks","architectural_style":"Varied military styles; Italian Villa for the Staff Post quarters and Second Renaissance Revival for the Chapel","criteria":[],"status_note":"Active military installation; many historic quarters, barracks and other buildings remain in use, and the post is open with a museum for the public.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:18.451113-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/90/9712/40971290/content/electronic-records/rg-079/NPS_TX/75001950.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/75001950/bb7445e32e-800.webp","url_1600":"https://nationalhistoricalregister.com/media/75001950/bb7445e32e-1600.webp","licence":"Public domain","author":"Chitrapa at English Wikipedia","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Quad01a.jpg\" rel=\"noopener\">Chitrapa at English Wikipedia</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Quad01a.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40971290","wikipedia":"https://en.wikipedia.org/wiki/Fort_Sam_Houston","wikidata":"https://www.wikidata.org/wiki/Q1438706"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/bexar-county/fort-sam-houston-75001950/"}