Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]DANFS vol. III (G-I), Gar (SS-206) entry - construction, fifteen war patrols, postwar target-training and reserve-service disposal (printed-volume transcription via hazegray.org/Wayback; live NHHC page returned 404) [nhhc_danfs]
- Locator
- DANFS vol. III (G-I), Gar entry and spec block
- Finding type
- vessel_history
- Finding
- Documented for this hull (DANFS): launched 7 November 1940 by Electric Boat Co., Groton, Conn. (sponsor Mrs. George T. Pettingill); commissioned at New London 14 April 1941, Lt. D. McGregor. Transited Panama Canal 3 December 1941, arrived San Diego three days after the Pearl Harbor attack; prepared for combat at Mare Island Naval Shipyard; departed San Francisco 15 January 1942. Fifteen war patrols 1942-44 across the East Indies, South China Sea, Philippines, Palau, and Bonin areas: sank Chichiubu Maru, Heinan Maru (beached), Aso Maru, a 3,197-ton passenger-cargo ship transcribed as 'MCIKAI MARU' in DANFS, Indus Maru, Koyu Maru, Taian Maru; laid 32 mines off Bangkok 19 October 1942; lifeguard duty off Palau and Yap (eight aviators rescued); landed men and supplies on Luzon late 1944. Mare Island overhaul late 1943; Pearl Harbor Naval Shipyard overhaul early 1945. Target trainer for antisubmarine ships at Saipan and Guam from April 1945; arrived Portsmouth, N.H. 20 October 1945; decommissioned there 11 December 1945. Overhauled at Portsmouth Naval Shipyard September-October 1948 for service as 4th Naval District reserve training submarine at Cleveland, Ohio (arrived via Mississippi River and Chicago Canal 28 November 1948). Struck from the Navy List 29 May 1959; sold for scrapping 18 November 1959 to Acme Scrap Iron and Metal Co. Eleven battle stars.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1939-1959
- Population
- EB Groton construction trades (1939-41); yard trades at MINSY, PHNSY, PNSY availabilities; crew (1941-45); reserve-training custody (1945-59)
- Limitations
- Ship-specific history only; no asbestos or material content. Live NHHC DANFS page returned 404 - printed-volume transcription via hazegray.org/Wayback used. DANFS spec block lists class as TAMBOR (the SS-206-211 Gar group is a subdivision of the Tambor class).
- Atlas source
- true
- Evidence ID
- ev-uss-gar-ss206-01
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[2]NavSource Submarine Photo Index, USS Gar (SS-206) - milestones, spec block, disposition [other_primary]
- Locator
- NavSource SS-206 page - milestone block and spec block
- Finding type
- vessel_history
- Finding
- Milestones (NavSource): laid down 27 December 1939 at Electric Boat Co., Groton, CT; launched 7 November 1940; commissioned 14 April 1941; decommissioned 11 December 1945 at Portsmouth Navy Yard, Portsmouth, NH; laid up in the Atlantic Reserve Fleet; modified at Portsmouth Navy Yard; assigned to 4th Naval District at Cleveland, Ohio, 28 November 1948; struck from the Naval Register 29 May 1959; final disposition sold for scrapping 18 November 1959 to Acme Scrap Iron and Metal Co. Eleven battle stars. Spec block: surfaced 1,475 t., submerged 2,370 t.; length 307'2"; complement 5 officers, 54 enlisted.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Population
- Crew
- Limitations
- Secondary compilation - milestone/disposition detail consistent with DANFS. Laid-down date (27 Dec 1939) comes from NavSource only; DANFS does not give a laid-down date for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-gar-ss206-02
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[3]Era inference anchored to DANFS-documented construction and yard periods for this hull; Tambor/Gar-class diesel-electric plant per DANFS and NavSource specification blocks [other_primary]
- Locator
- construction-era inference from DANFS dates, NavSource spec block, documented yard periods
- Finding type
- asbestos_application
- Finding
- Era inference: a diesel-electric fleet submarine built 1939-41 at Electric Boat, Groton in the peak asbestos era would era-typically have carried asbestos-containing exhaust lagging, engine gaskets and packing, and thermal/acoustic insulation around machinery and galley/refrigeration equipment. Gar-class boats had NO boilers or steam plant - the diesel-electric plant narrows the steam-era asbestos pathway materially. Documented yard windows for this hull: Electric Boat construction (1939-41); Mare Island combat preparation (early 1942) and overhaul (late 1943); Pearl Harbor Naval Shipyard overhaul (early 1945); Portsmouth Navy Yard decommissioning and 1948 reserve-training conversion; 4th Naval District reserve custody at Cleveland (1948-59); scrapping by a commercial yard (1959). Longest exposure-relevant custody window in the batch.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-18
- Study period
- 1939-1959
- Population
- Construction and yard trades; crew; reserve-training personnel; scrapper workforce (1959)
- Limitations
- CLASS/ERA INFERENCE ONLY - no ship-specific material schedule, insulation survey, or asbestos abatement record was located for this hull. Names era-standard applications, not confirmed installed materials. Establishes no quantity and no exposure for any individual.
- Atlas source
- true
- Evidence ID
- ev-uss-gar-ss206-03
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[4]Kase v. Metalclad Insulation Corp., 6 Cal.App.5th 623 (Cal. Ct. App. 2016), No. A143590 - published opinion documenting the Navy specification regime for asbestos insulation [court_record]
- Locator
- Kase v. Metalclad Insulation Corp., 6 Cal.App.5th 623 (2016), discussion of Navy insulation specifications
- Finding type
- litigation_documented
- Finding
- Published appellate opinion (era context): the U.S. Navy's specifications called for asbestos in thermal insulation aboard Navy ships, and the Navy had studied asbestos insulation products (e.g., Unibestos) from the 1930s. Documents the specification regime under which this hull was built at a Navy-supervised commercial yard in 1939-41 - it does NOT name USS Gar or any Tambor-class submarine.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-18
- Study period
- 1930s-1960s
- Population
- Navy shipboard workers (era level)
- Limitations
- Era/spec-regime documentation only; the case involves different vessels and defendants. Cannot be promoted into ship-specific evidence for this hull. Litigation-stage note: published appellate opinion describing the spec regime, not a finding about this vessel.
- Atlas source
- true
- Evidence ID
- ev-uss-gar-ss206-04
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[5]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO HRD-80-2 product page
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - covering the construction era and entire service life of this hull (scrapped 1959, before the substitution era).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-18
- Study period
- 1930s-1970s
- Population
- Navy shipyard workers (program level)
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403) - carried via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-gar-ss206-05
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[6]Negative finding: no qualifying non-litigation ship-specific asbestos record located across DANFS/NHHC (printed vol. III + HyperWar transcription), NavSource, War Damage Report No. 58, official USN Submarine Losses WWII volume, NHHC chronological submarine-losses publication, and shipyard dataset searches [other_primary]
- Locator
- research sweep result - see search_ledger for repositories queried
- Finding type
- historical_record
- Finding
- No hull ACM survey, abatement contract, hazmat disclosure, or adjudicated exposure finding naming USS Gar (SS-206) was located anywhere in the research sweep. The hull was scrapped commercially in 1959; no scrapper-side material record was retrievable.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Limitations
- Absence of a located record is not proof no record exists. Scrapper-side (Acme Scrap Iron and Metal Co.) and yard-side work records, where they existed, were not retrievable in located sources. Litigation sweep is INCOMPLETE - CourtListener queries for this hull returned HTTP 429/403 (see search_ledger); no litigation negative is claimed.
- Atlas source
- true
- Evidence ID
- ev-uss-gar-ss206-06