{"name":"Lightship No. 83 Swiftsure","city":"Seattle, Washington","canonical_url":"https://gydeinfo.com/seattle/places/lightship-no-83-swiftsure/","markdown_url":"https://gydeinfo.com/seattle/places/lightship-no-83-swiftsure.md","updated_at":"2026-06-20T18:59:15.512862+00:00","facts":[{"claim":"The Seattle Times reports that Swiftsure was designated a National Historic Landmark in 1989.","citation":"https://www.seattletimes.com/seattle-news/new-life-on-lake-union-for-brave-old-lightship-swiftsure/","source_title":"New life on Lake Union for brave old lightship Swiftsure","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-20T17:37:47.797538+00:00","fact_type":"significance","as_of":"1989","confidence":0.83},{"claim":"A wartime anecdote associated with Swiftsure is that it fired a warning shot at a ship that failed to signal the correct recognition code near San Francisco Bay.","citation":"https://www.seattletimes.com/seattle-news/new-life-on-lake-union-for-brave-old-lightship-swiftsure/","source_title":"New life on Lake Union for brave old lightship Swiftsure","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-20T17:37:47.797538+00:00","fact_type":"anecdote","as_of":"2026","confidence":0.76},{"claim":"The ship was built in New Jersey and spent most of its operational life off the California coast before its final decade of lightship service.","citation":"https://www.seattletimes.com/seattle-news/new-life-on-lake-union-for-brave-old-lightship-swiftsure/","source_title":"New life on Lake Union for brave old lightship Swiftsure","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-20T17:37:47.797538+00:00","fact_type":"history","as_of":"2026","confidence":0.82},{"claim":"Northwest Seaport is a nonprofit devoted to preserving and interpreting maritime heritage and to developing educational programs for the community.","citation":"https://www.discoverslu.com/location/northwest-seaport/","source_title":"Northwest Seaport - 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