{"nrhp_refnum":"73000851","name":"Naval Hospital Boston Historic District","other_names":[],"category":"district","location":{"address":"1 Broadway","address_restricted":false,"city":"Chelsea","county":"Suffolk County","state":"MA","lat":42.39014000000006,"lon":-71.04820687432309,"geom_source":"nps_gis"},"listed_date":"1973-08-14","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Military","Health/Medicine"],"significance_levels":["national"],"summary":{"what_it_is":"A military hospital complex at 1 Broadway in Chelsea, Suffolk County, Massachusetts, owned by the Department of the Navy. It has five buildings erected before 1858 and other buildings dating to before 1920, on about 87.85 acres.","why_significant":"The nomination calls it the oldest naval hospital in continuous active service in the United States. Its original hospital building opened in 1836 and was one of the first three hospitals authorized specifically for naval personnel. The site also has colonial-era associations, including Samuel Maverick's settlement and the first ferry landing, and the 19th-century buildings show period construction and design.","narrative":"Naval Hospital Boston is a military medical campus on a hillside at 1 Broadway in Chelsea, overlooking the Mystic River. The district includes five buildings put up before 1858 and other structures from before 1920. Building 1, a Vermont granite hospital, opened on January 7, 1836, and was one of the first three hospitals authorized specifically for naval personnel, who had previously used Marine hospitals. Two granite magazine buildings date to about 1836, and Building 59, a brick Marine Hospital completed in 1857, later received a mansard roof and a fourth story. Quarters A, built in 1856, houses the commanding officer. The nomination describes it as the oldest naval hospital in continuous active service in the country. It also notes the site's earlier history, including Samuel Maverick's fortified house of 1625, the landing of the first ferry to Charlestown and Boston in 1631, and its role in the 1775 Bunker Hill period. The high, well-watered site was chosen for its healthful setting.","period_of_significance":null,"architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Condition is listed as excellent and altered. The original five buildings and many later ones remain in use, though not always for their original purpose; Building 59 was undergoing interior modernization.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:54.374183-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/86/7970/63797086/content/electronic-records/rg-079/NPS_MA/73000851.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/73000851/833a438940-800.webp","url_1600":"https://nationalhistoricalregister.com/media/73000851/833a438940-1600.webp","licence":"CC BY-SA 3.0","author":"Mark Spencer","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Middle_Building.jpg\" rel=\"noopener\">Mark Spencer</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Middle_Building.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63797086","wikipedia":"https://en.wikipedia.org/wiki/Naval_Hospital_Boston_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q6981833"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/suffolk-county/naval-hospital-boston-historic-district-73000851/"}