Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
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[1]research packet ev-packet.md (2 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-chevalier-dd451-pkt-ev-packet-md
-
[2]DANFS, Chevalier I (DD-451) (namesake, spec block, service narrative, loss, casualties, battle stars; verbatim HyperWar/ibiblio transcription - live NHHC page 404; Wayback capture of NHHC page 2025-12-08 confirms same text) [nhhc_danfs]
- Locator
- DANFS entry, Chevalier I: specifications block + service narrative; NHHC page at https://www.history.navy.mil/research/histories/ship-histories/danfs/c/chevalier-i.html via Wayback 2025-12-08
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: launched 11 April 1942 by Bath Iron Works Corp., Bath, Maine, sponsored by Mrs. G. DeC. Chevalier; commissioned 20 July 1942, Lt. Comdr. E. R. McLean, Jr., in command. Three Atlantic convoy-escort voyages 3 October-11 December 1942 (coastwise tankers; Bermuda-Norfolk; early North Africa reinforcement convoy); sailed Norfolk 17 December 1942, reached Efate 22 January 1943. TF 18 cover for Guadalcanal transports; Battle of Rennell Island antiaircraft action 29-30 January. Patrols from Efate/Espiritu Santo; 7 May escorted minelayers to Blackett Strait and Kula Gulf (minefield sank/damaged Japanese destroyers Kuroshio, Oyashio, Kagero); 11-14 May Vila bombardment and Kula Gulf minelaying cover. Night action supporting Rice Anchorage landings: Strong (DD-467) torpedoed; Chevalier deliberately rammed alongside Strong's port side under shore-battery fire and took off 241 survivors, receiving a 10-by-2-foot bow hole; repaired Espiritu Santo 8-22 July. Covered Vella Lavella landings 15 August; 17 August action against Japanese destroyers/barges; September escort voyage to Sydney. Night of 6-7 October 1943, with O'Bannon (DD-450) and Selfridge (DD-357), intercepted a Japanese evacuation force off Vella Lavella: torpedo hit on the port bow at ~2205 severed the bow to the bridge; O'Bannon rammed the after engine room; Chevalier fired her tube torpedoes at the burning Yugumo, which blew up; abandon ship ordered 2326; crew taken off by O'Bannon's boats; sunk the following day by a torpedo from a friendly destroyer and the severed bow (found ~1 mile west) sunk by depth charges; 54 killed, 36 wounded; three battle stars. Spec block: dp. 2,050; 376'5" x 39'7" x 17'9"; 35 kt; cpl. 329; 5 x 5", 10 x 21" tt., 6 dcp., 2 dct.; cl. Fletcher.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1941-1943
- Population
- Bath Iron Works construction trades 1941-42; wartime crew (design complement 329); 54 killed/36 wounded at loss
- Limitations
- DANFS documents service history and specifications, not materials or asbestos content. Its ~2205 torpedo-hit and 2326 abandon-ship times conflict with the BuShips War Damage Report timeline and the CO's own action report (hit 2301; abandoned ~2h40m later) - carried in gaps. Its 'nine Japanese destroyers' conflicts with the NHHC Online Library's 'six'; its Kula Gulf entry date reads '1 July' in the HyperWar transcription but '4 July' on the NHHC page (the Strong rescue was the night of 4-5 July). DANFS gives no laid-down or stricken date. Mirror cited because the live NHHC page returns 404; NHHC Wayback capture (2025-12-08) reads identically except the July date.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-01
-
[3]Bureau of Ships, War Damage Report No. 50, 'Destroyer Report: Torpedo and Mine Damage and Loss in Action, 17 October 1941 to 7 December 1944' (NAVSHIPS 50 (374), Preliminary Design Section, 1 May 1945), Section III-8 'USS CHEVALIER (DD451) - Loss in Action off Vella La Vella Island, 6 October 1943,' pp. 35-38 + Plate VI [other_primary]
- Locator
- WDR-50 Section III-8, book pp. 35-38 + Plate VI (damage diagram); references (a)-(c) cite the CO/XO/witness action reports
- Finding type
- vessel_history
- Finding
- Official BuShips technical loss analysis of this hull, built on the CO's loss report (DD451/A16-3 Serial 0013 of 15 Oct 1943), CO O'Bannon Serial 009 and CO La Vallette Serial 006 of October 1943: class FLETCHER (DD445); launched 11 April 1942. At General Quarters with 'the engineering plant completely split, and material condition ABLE set.' Torpedo hit at 2301 just forward of the bridge at about frame 58, four-to-five feet below the waterline, assessed as a port-side Type 93 destroyer torpedo (the CO believed the hit starboard from small craft - divergence documented in the report); bow completely severed at ~frame 58; forward fireroom flooded rapidly through buckled/split bulkhead 72; ~1.5 minutes later O'Bannon's bow penetrated 10-12 feet into the after engineroom on the starboard side at ~frame 134, flooding it to sea level immediately and severing fuel-oil lines; after fireroom and forward engineroom flooded slowly; all propulsive and electrical power lost. Abandoned about 2 hours 40 minutes after being torpedoed and rammed; La Vallette sank the hulk by torpedo about an hour after abandonment, producing a magazine-scale detonation ('flame and fire rose to a height of at least 500 feet'); bow section located ~1 mile west and sunk with five depth charges, last seen sinking at 0311. Report concludes the bow loss alone would not have been fatal - 'there is no reason to suppose that she would not have been able to leave the scene of action under her own power had she not been rammed.'
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1943-10-06/07 (event); report published 1945-05-01
- Population
- Crew at loss (54 killed, 36 wounded per DANFS); La Vallette boarding officer inspected hulk before scuttling
- Limitations
- Documents damage, flooding sequence, and the split machinery-space arrangement (forward/after firerooms, forward/after enginerooms) ship-specifically - valuable context for where era-standard insulation was installed, but the report addresses battle damage, not materials or asbestos content. No casualty count given in the narrative section. Timeline (hit 2301, abandon +2h40m) conflicts with DANFS's ~2205/2326 - carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-02
-
[4]Naval Historical Center, Online Library of Selected Images - 'USS Chevalier (DD-451), 1942-1943' (official U.S. Navy photo page with captions; HyperWar/ibiblio mirror of the NHC page) [other_primary]
- Locator
- ibiblio mirror, page body + photo captions 80-G-43647/58800/58803
- Finding type
- historical_record
- Finding
- NHC Online Library narrative for this hull corroborates the DANFS outline: built at Bath, Maine, commissioned July 1942; Atlantic convoy escort October-December 1942; Battle of Rennell Island; May 1943 Blackett Strait/Kula Gulf minelaying cover; damaged 5 July while rescuing the torpedoed Strong's crew; Vella Lavella landings mid-August including an 18 August engagement; September Australia convoy escort; on the night of 6-7 October 'one of three U.S. destroyers that took on a force of six Japanese destroyers' in the Battle of Vella Lavella; bow blown off to the bridge, further damaged amidships by collision with O'Bannon, scuttled by a torpedo from La Vallette. Captions identify NARA-held official photos 80-G-43647 (1942, censored radar antennas), 80-G-58800 and 80-G-58803 (DesRon 21 column, 15 August 1943, Chevalier with O'Bannon and Taylor, photographed from Nicholas).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1942-1943
- Population
- Wartime crew
- Limitations
- Mirror of an official Naval Historical Center page (HyperWar transcription); corroborates but adds no material detail beyond DANFS except the 'six Japanese destroyers' figure (DANFS reads nine) and the 18 August engagement date (DANFS reads the 17th) - both carried in gaps. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-03
-
[5]Destroyer History Foundation (destroyerhistory.org), USS Chevalier DD-451 pages - ship narrative plus full transcription of the CO's Report of Enemy Action Resulting in Loss of Vessel (USS Chevalier DD 451, c/o FPO San Francisco, Serial 0013 of 15 October 1943) and the Executive Officer's action report [other_primary]
- Locator
- destroyerhistory.org/fletcherclass/usschevalier - Loss, CO Action Report (pid=45108), XO Action Report pages
- Finding type
- vessel_history
- Finding
- Foundation transcription of this hull's own action reports: the CO's first-person loss narrative gives the engagement timeline in zone 'love' time (radar contact 2240; half-salvo torpedo launch 2253; main-battery fire opened 2255; torpedo hit 2301 in the right turn), reports two concussions (torpedo plus a Gun-2 magazine impression), describes securing all boilers and abandoning engineering spaces as water gained ('the after engineroom was completely flooded'), and gives the casualty breakdown: 0 officers killed, 11 men killed, 1 officer missing, 42 men missing; wounded 5 seriously + 12 officers and 29 men slightly (46 total). The report is signed G. R. WILSON - the commanding officer at the loss (McLean commissioned the ship but had been relieved before October 1943). The site narrative adds: DesDiv 41/DesRon 21 assignment in March 1943 with Nicholas, O'Bannon, and Strong; nicknames 'the Chevy' and 'Fighting French Cruiser'; '14-1/2 months in commission'; and the second Chevalier (DD-805) laid down at Bath 12 June 1944, transferred to Korea as Chung Buk after USN service to 2 June 1975.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1943-10-06/07 (event); report dated 1943-10-15
- Population
- Crew and officers named in the action report (Hansen, Cowan, Breed, Kley, Mcquilkin, Hewes, Tillisch, Weber; enlisted casualties incl. Hunter S1C)
- Limitations
- Foundation-hosted transcription of primary Navy documents (secondary host); content is consistent with the action reports as cited in BuShips WDR-50 references (a)-(c), but the originals were not examined. Casualty figures (11 killed + 42 missing + 1 officer missing = 54; 46 wounded) differ in the wounded count from DANFS (36) - carried in gaps. The CO's belief that the hit was starboard-side from 'PT boats' conflicts with the BuShips port-side Type 93 assessment. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-04
-
[6]Fletcher-class machinery and build data (DANFS spec block; NavSource class data; navypedia member table row DD-451: Bath yard no. 186, laid 4/1941, launched 11.4.1942, comm. 7/1942, sunk 7.10.1943) + Atlas shipyard dataset, Bath Iron Works record (1942-era pipe-covering-shop health survey, Fleischer & Viles, J Ind Hyg Toxicol 1946, PMID 21016030; OSHA 1987 record); NARA RG19 General Information Books archival lead [other_primary]
- Locator
- DANFS spec block; navypedia DD-451 row; shipyards.json record 'bath-iron-works' (ev-bath-iron-works-01/-02); NARA RG19 lead
- Finding type
- asbestos_application
- Finding
- Era/yard inference: a Fletcher-class destroyer built 1941-42 with a four-boiler/60,000-shp two-shaft steam plant (class machinery: Babcock & Wilcox boilers, General Electric geared turbine sets) would have carried period-standard asbestos boiler and steam-line insulation, turbine lagging, gaskets, packing, fireproofing, and deck coverings; builder Bath Iron Works is documented at yard level in the Atlas dataset (tier 2), including the Harvard-team health survey of pipe-covering operations in naval-vessel construction conducted at the yard in 1942 (Fleischer & Viles, J Ind Hyg Toxicol 1946, PMID 21016030), which the yard record describes as documenting 'fairly serious dust risk' - contemporaneous with this hull's April 1941-July 1942 construction. NARA RG19 'General Information Books' per-vessel material specifications are an archival lead for hull-level specs.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-27
- Study period
- 1941-1943
- Population
- Bath Iron Works construction trades 1941-42; crew 1942-43
- Limitations
- Class/era and builder-yard inference only - NOT a hull-specific finding; no document located states that any specific asbestos product was installed aboard DD-451. The yard study documents 1942 yard practice, not materials installed aboard this hull. Does not quantify material or establish any individual's exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-05
-
[7]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2
- 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 - placing DD-451's entire existence (construction 1941-42, commissioned service 1942-43) inside the documented asbestos-use era.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-27
- Study period
- 1979 (report); era context for 1941-43
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full report text not retrieved (gao.gov blocks automated fetch, HTTP 403) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-06
-
[8]NARA holdings for this hull: WWII-era deck logs (RG 24, Entry 118, NARA II College Park); the action reports cited by WDR-50 references (a)-(c) (CO Chevalier Serial 0013 + XO report; CO O'Bannon Serial 009; CO La Vallette Serial 006, Oct 1943); WDR-50 Plate VI damage diagram; NARA RG 19 Bureau of Ships 'General Information Books' (per-vessel material specifications) [other_primary]
- Locator
- NARA RG 24 Entry 118 (deck logs); RG 38 action reports as cited by WDR-50 refs (a)-(c); RG 19 GIB series
- Finding type
- historical_record
- Finding
- Hull-level primary records exist in NARA custody but were not retrieved: DD-451's 1942-43 deck logs are in RG 24 Entry 118 (NARA's published digitized deck-log list covers only the second Chevalier, DD-805, for 1966-69 - DD-451's logs are not in the digitized set); the October 1943 action/loss reports cited by WDR-50 (references a-c) and the report's Plate VI damage diagram survive as Navy records; RG 19 General Information Books hold per-vessel material specs and are the standing hull-level asbestos-specification lead.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1941-1943 records; unretrieved
- Limitations
- Archival leads only - nothing in these holdings has been examined for this record; deck logs would document positions/operations, not insulation content; only the RG19 GIB could potentially state hull-level material specifications.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-07
-
[9]Batch-3435 search ledger (this record): DANFS mirror + NHHC Wayback; BuShips WDR-50 full text; NHC Online Library photo page; destroyerhistory.org narrative + action-report transcriptions; NavSource (Wayback capture; live site unreachable); navypedia member table; GAO HRD-80-2; NARA digitized deck-log list; wreck-survey search; CourtListener exact-name + hull-number sweep [other_primary]
- Locator
- search_ledger rows sl-uss-chevalier-dd451-01 through -10
- Finding type
- historical_record
- Finding
- No ship-specific asbestos record located for this hull in the public sources searched: no hull ACM survey, abatement record, materials inventory, donation/transfer hazmat disclosure, or museum disclosure exists to find - the ship was sunk in action in October 1943, before any such documentation regime, and never had a postwar phase. The wreck is unsurveyed in located authoritative sources (a community wikimapia entry and AI-generated pages assert a position/condition but are excluded per sourcing rules).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 2026-09-27
- Limitations
- Absence of a located record does not prove absence of asbestos aboard - era-standard applications are documented at class/era level for 1941-42 Fletcher construction. Material condition of the sunken hull is undocumented and, absent any wreck survey, unknowable from located sources.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-08
-
[10]CourtListener API v4 search (type=o opinions and type=r dockets), exact-name queries "USS Chevalier" / "U.S.S. Chevalier", vessel-reference queries "aboard USS Chevalier"/"aboard the Chevalier", surname-with-subject query "Chevalier" asbestos, and hull-number queries "DD-451" - authenticated via cl-auth-search.py under fleet pacing, 2026-09-27 [court_record]
- Locator
- cl-auth-search.py session log batch3435-cl-results.log 2026-09-27; search_ledger sl-uss-chevalier-dd451-10
- Finding type
- litigation_documented
- Finding
- No qualifying asbestos litigation naming this hull located. "USS Chevalier": 0 opinions, 0 dockets - the attribution-clean negative. "U.S.S. Chevalier": 0 opinions. "aboard USS Chevalier"/"aboard the Chevalier": 0 opinions. "Chevalier" asbestos: 23 opinion hits, all surname/party-name collisions (e.g., St. Charles Surgical Hosp., Gilmore, Payment Card Interchange antitrust, Loeb v. Vergara) - none names the vessel or an asbestos claim aboard it. "DD-451" type=r: 5 dockets, all identifier collisions in unrelated litigation (U.S. v. Malouff criminal, In re WorldCom bankruptcy appeal, Arch Coal bankruptcy, NYT v. Microsoft copyright, U.S. v. Georgia ADA) where 'DD-451' matches an internal exhibit/document string. "DD-451" type=o: uncompleted - fleet pacing exhausted retries; logged in search_ledger.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 2026-09-27
- Limitations
- The attribution-clean queries (exact USS name in both spellings, aboard-vessel phrases) returned zero qualifying results - the strongest obtainable negative. Absence of indexed hits does not prove no litigation exists - RECAP coverage is incomplete for state-court filings and unindexed text, and the hull's commissioned window (1942-43) predates the asbestos-litigation era. Two-hull collision risk is real: any post-1943 'USS Chevalier' exposure claim is presumptively DD-805 (Gearing class, 1945-1975), not this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-chevalier-dd451-09