Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet iu-packet.md (7 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-du-pont-dd152-pkt-iu-packet-md
-
[2]DANFS, Du Pont II (DD-152) (specifications block + service narrative; verbatim transcription - live NHHC page returns 404 on slug variants tested) [nhhc_danfs]
- Locator
- DANFS entry, specifications block + full service narrative (hazegray/losthistory.net verbatim transcription)
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: Wickes-class destroyer, 1,090 t, 314'6" x 31'8" x 8'8", 35 kt, complement 101, 4x4"/2x3"/4x21" tt. Launched 22 October 1918 by William Cramp & Sons Ship & Engine Building Co., Philadelphia (sponsor Miss C. S. Du Pont); commissioned 30 April 1919 (Comdr. W. Baggaley). Azores patrol during the NC transatlantic flight May 1919; Mediterranean/Constantinople 1919-20 (relief mail/passenger duty; conditions survey Lebanon, Syria, Egypt, Greece); reduced-commission reserve training from 21 July 1920; decommissioned at Philadelphia 19 April 1922. Recommissioned 1 May 1930; east coast/Caribbean exercises and reserve cruises; escorted Arizona (BB-39) with President Hoover embarked to Ponce and St. Thomas March 1931; west coast cruise January-October 1932; Rotating Reserve Squadron 19; Boston Naval Reserve training; Cuba patrol September 1933-February 1934; returned to active commission August 1934; Caribbean target/plane-guard duty; San Diego training and tactical development 1934-36 (Alaskan waters, Pearl Harbor, Canal Zone fleet problem); Philadelphia Navy Yard 29 September 1936; decommissioned 14 January 1937. Recommissioned 16 October 1939 for Neutrality Patrol; five convoys to Argentia and Iceland 7 July 1941-26 February 1942; rescued 30 survivors of a torpedoed merchantman 16 March 1942; New York/Norfolk-Key West-Guantanamo convoy escort May 1942-January 1943; Aruba-Guantanamo tanker convoys; Mediterranean (Algiers, Casablanca) May-June 1943; two UK convoy voyages July-September 1943; Bogue (CVE-9) hunter-killer group November-December 1943; with George E. Badger (DD-196) drove a surfaced U-boat to the surface 12-13 December and rescued 46 survivors (the sunken boat is identified in DANFS as 'U-173' after an initial sighting report of 'U-178' - the historically documented boat is U-172; see ev-05); shared Presidential Unit Citation for TG 21.13. Gibraltar convoy January-March 1944; screened Albemarle (AV-6) to Avonmouth and returned with Normandy casualties June-July 1944. Charleston Navy Yard 16 September-9 October 1944 for conversion to auxiliary; reclassified AG-80 (26 September per the transcription); Key West target ship for Fleet Air Wing (5 or 6 - transcriptions differ); two downed aviators rescued 24 November 1944; arrived Boston 1 April 1946 (transcription reads '1940' in error); decommissioned 2 May 1946; sold 12 March 1947. Three WWII battle stars.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 1918-1947
- Population
- Cramp & Sons construction trades 1918-19; crews 1919-1922, 1930-1937, 1939-1946 (design complement 101)
- Limitations
- DANFS documents service history and specifications, not materials or asbestos content. DANFS omits a laid-down date for this hull (2 May 1918 is secondary-sourced - see gaps). The transcription carries internal inconsistencies corrected elsewhere in this record: the U-boat sunk 13 December 1943 is named both U-178 and U-173 (verified as U-172, ev-05); '1 April 1940' for the Boston arrival is a transcription typo (context and NavSource agree on 1946); 'DD-162' in the entry header is a transcription error for DD-152. Mirror transcription cited because live NHHC slugs return 404.
- Atlas source
- true
- Evidence ID
- ev-uss-du-pont-dd152-01
-
[3]Lowcountry Digital Library catalog record lcdl:831, Charleston Naval Shipyard Photographs collection (contributing institution Patriots Point Naval and Maritime Museum): official U.S. Navy photograph '2864-44 US Navy Yard, SC, 6 October 1944. USS Dupont, (AG-80 ex DD 152), Stern View' [museum_official]
- Locator
- LCDL catalog record lcdl:831 (Title 'USS Du Pont'; description field quoting the print caption)
- Finding type
- historical_record
- Finding
- An official U.S. Navy yard photograph cataloged in the Charleston Naval Shipyard Photographs collection documents this hull inside Charleston Navy Yard during the AG-80 conversion period: the print caption reads '2864-44 US Navy Yard, SC, 6 October 1944. USS Dupont, (AG-80 ex DD 152), Stern View.' This verifies the hull's documented September-October 1944 conversion availability at Charleston Navy Yard.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 1944
- Population
- Charleston Navy Yard workers during the DD-152-to-AG-80 conversion, September-October 1944
- Limitations
- Archival photograph metadata only - documents the hull's presence at Charleston Navy Yard and the conversion on the date shown; contains no materials or asbestos information and does not describe conversion scope, trades involved, or any insulation work.
- Atlas source
- true
- Evidence ID
- ev-uss-du-pont-dd152-02
-
[4]DANFS specifications block (Wickes class; 35 kt; complement 101) + Atlas shipyard dataset records 'charleston-naval-shipyard' (Tier 2; documented products incl. magnesia pipe insulation, asbestos cement, boiler external coatings with asbestos content), 'philadelphia-naval-shipyard' (Tier 3; litigation-documented asbestos products incl. Unibestos, Kaylo, Garlock; OSHA 1989 inspection), and 'boston-naval-shipyard' (Tier 3; documented gaskets/sealing materials) [other_primary]
- Locator
- DANFS spec block and service narrative (yard periods); NavSource operational data; shipyards.json records 'charleston-naval-shipyard', 'philadelphia-naval-shipyard', 'boston-naval-shipyard'
- Finding type
- asbestos_application
- Finding
- Era/yard inference: a Wickes-class destroyer built 1918 at William Cramp & Sons carried a period steam plant (class-typical for the DD-142-160 Cramp group: four White-Forster boilers feeding two Parsons geared turbines on two shafts; ~24,610 shp class design) of the era in which asbestos lagging on boilers and steam lines, gaskets, packing, and fireproofing were standard shipbuilding practice. Three yards documented as working on this hull are asbestos-documented in the Atlas dataset: Charleston Navy Yard (Tier 2; September-October 1944 conversion to AG-80, photo-verified), Philadelphia Navy Yard (Tier 3; 1936-37 decommissioning availability, and the 1922 decommissioning 'at Philadelphia'), and Boston Navy Yard (Tier 3; entered Boston Navy Yard 1 April 1946 per NavSource; decommissioned there 2 May 1946).
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-26
- Study period
- 1918-1946
- Population
- Cramp & Sons construction trades 1918-19; Philadelphia Navy Yard workers (1922, 1936-37); Charleston Navy Yard workers (1944); Boston Navy Yard workers (1946); crews 1919-1946
- Limitations
- Class/era and builder-yard inference only - no ship-specific asbestos finding for this hull exists in the record. WWI-era asbestos use on steam plants is era-standard inference; yard-level asbestos documentation does not establish that this hull's availabilities involved asbestos work, disturbed ACM, or any crew exposure. Builder William Cramp & Sons is not an Atlas shipyards.json entry.
- Atlas source
- true
- Evidence ID
- ev-uss-du-pont-dd152-03
-
[5]National Archives, 'Logbooks of the U.S. Navy at the National Archives' (RG 24 Entry 118, NAID 581208, with Special List #44 covering 1801-1947; post-1941 deck logs at Archives II, College Park) [other_primary]
- Locator
- archives.gov logbook guidance page; RG 24 Entry 118 / Special List #44; post-1941 deck logs at Archives II
- Finding type
- historical_record
- Finding
- Du Pont's logbooks/deck logs for her service periods (1919-1922, 1930-1937, 1939-1946), if extant, sit in NARA RG 24 holdings: logs through 1940 in RG 24 Entry 118 (NAID 581208, Special List #44 item list) at Archives I (Washington, DC); 1941-and-later deck logs at Archives II (College Park). Deck logs can document yard availabilities, maintenance periods, and day-to-day engineering work relevant to disturbance-era questions.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-26
- Study period
- 1919-1946 (record coverage)
- Limitations
- Series-level lead only - whether Du Pont's specific log file units are extant or digitized was not verified. Deck logs document events, not materials; even a located log would not itself establish asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-du-pont-dd152-04
-
[6]U-boat Archive, U-172 file: U.S. Navy VC-19 ASW-6 antisubmarine-action reports (aircraft narratives of 12-13 December 1943), Report of Sinking of Enemy Submarine by USS Badger / USS Osmond Ingram, and Office of Naval Intelligence 'Interrogation of Survivors from U-172, sunk 13 December 1943' [other_primary]
- Locator
- uboatarchive.net U-172 file - VC-19 ASW-6 report No. 6 (narrative naming Du Pont's sound contact) and ONI survivor-interrogation report (Chapter I)
- Finding type
- historical_record
- Finding
- Navy action reports identify the submarine sunk on 13 December 1943 as U-172 (not 'U-178'/'U-173' as the DANFS transcription garbles it): TG 21.13 centered on Bogue (CVE-9) with destroyers Clemson, Du Pont, Osmond Ingram, and George E. Badger. The VC-19 ASW-6 narrative states 'the U.S.S. DUPONT established a sound contact with a submarine 8 miles from the previous attack' and that sound contact was verified by sono-buoys and made by Du Pont and George E. Badger; the ONI interrogation report records 46 survivors rescued (4 officers, 14 petty officers, 28 men) and the sinking position 26 deg 19' N, 29 deg 58' W - matching the position in DANFS.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 1943
- Population
- Du Pont and TG 21.13 crews, 12-13 December 1943
- Limitations
- Corrects a transcription-era error in the DANFS narrative (the same passage names the boat 'U-178' at first sighting and 'U-173' at sinking); the action reports are contemporary primary documents hosted at uboatarchive.net (an archival-mirror site, not a government host). Contains no materials or asbestos information; carried to fix the hull's combat record accurately.
- Atlas source
- true
- Evidence ID
- ev-uss-du-pont-dd152-05
-
[7]Batch-3158 search ledger (this record): NHHC DANFS (live, slug variants); hazegray/losthistory.net and ibiblio DANFS mirrors; destroyerhistory.org DANFS transcription; Naval Vessel Register; NARA logbook series pages; LCDL Charleston Naval Shipyard Photographs catalog; Atlas shipyard dataset; general web for surveys/abatement/disposal records and litigation leads [other_primary]
- Locator
- search_ledger rows sl-uss-du-pont-dd152-01 through sl-uss-du-pont-dd152-10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, shipyard work package, industrial-hygiene study, museum hazmat disclosure, or post-disposal environmental record naming DD-152/AG-80 was found in the public sources searched (see search_ledger). The hull was sold for scrap 12 March 1947; no surviving structure exists to survey.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 2026-09-26
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard during service - era inference (ev-03) argues period-standard asbestos use. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-du-pont-dd152-06
-
[8]CourtListener API v4 sweep (cl-auth-search.py, authenticated): all queued queries blocked by fleet-wide pacing at research time - not executed [court_record]
- Locator
- cl-auth-search.py exit 2 (fleet pacing stand-down) on 5 attempts 2026-09-26; blocked queries logged in search_ledger sl-uss-du-pont-dd152-08/09
- Finding type
- litigation_documented
- Finding
- CourtListener sweep unexecuted: the fleet-wide authenticated-search pacer stood down every attempt across the session ('USS Du Pont' type=o and planned 'U.S.S. Du Pont'/'DD-152'/'AG-80' variants and type=r docket queries). 'Du Pont' is an extremely high-collision legal name (E. I. du Pont de Nemours & Co. is a major litigant and the family name is common), so queries were queued as exact-phrase to avoid collision noise. No opinion or docket hit is claimed; no qualifying litigation is asserted.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 2026-09-26
- Limitations
- Sweep is NOT executed - the litigation negative for this hull is unestablished, not negative. Absence of a docketed case is not shown; a supplemental CourtListener pass (exact-name type=o plus type=r and hull-number variants) is the open task. Even a located docket would be a pleading-stage allegation unless an opinion adjudicates it.
- Atlas source
- true
- Evidence ID
- ev-uss-du-pont-dd152-07