Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
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[1]research packet io-packet.md (1 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-lehardy-de20-pkt-io-packet-md
-
[2]DANFS, LeHardy (DE-20) (namesake, builder, dates, service narrative, disposal; verbatim transcription - live NHHC page serves 404) [nhhc_danfs]
- Locator
- DANFS entry, specifications block + service narrative
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: laid down as Duff (BDE-20) for the British Navy 15 April 1942 by Mare Island Navy Yard; launched 21 November 1942 (sponsor Mrs. Bert A. Barr); retained for U.S. Navy use and renamed LeHardy 19 February 1943; commissioned 15 May 1943, Lt. Comdr. J.H. Prause in command. Convoy escort west coast-Pearl Harbor ('pineapple run') from 21 July 1943; ASW screen for Tarawa convoy (departed Pearl Harbor 15 November); Gilbert Islands patrol/screening; Marshall Islands landings convoy escort January-February 1944 (Kwajalein, Funafuti, Eniwetok); ASW operations and Hawaii training through summer 1944; Eniwetok-Ulithi tanker convoy escort 22 October 1944 - 22 January 1945; Seattle overhaul; resumed Eniwetok-Ulithi runs for the rest of the war; present at the Wake Island surrender ceremony 4 September 1945 (a ship detail raised the flag pole over Wake); decommissioned San Pedro 25 October 1945; sold 26 December 1946 to National Metal & Steel Corp., Terminal Island, Calif. Two battle stars for WWII service. Namesake Lt. Comdr. Marcel LeHardy, killed in action aboard USS San Francisco during the Naval Battle of Guadalcanal (night 12-13 November 1942), Navy Cross.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1942-1946
- Population
- Mare Island construction trades 1942-43; wartime crew (design complement 156)
- Limitations
- DANFS documents service history and specifications, not materials or asbestos content. The DANFS namesake paragraph contains an internal inconsistency (dates LeHardy's lieutenant-commander promotion 1 April 1943 while narrating his death in action 13 November 1942 - likely a posthumous promotion or transcription error); namesake detail is not asbestos-relevant and is carried as written. Mirror transcription cited because the live NHHC page returns 404.
- Atlas source
- true
- Evidence ID
- ev-uss-lehardy-de20-01
-
[3]Ships' Data, U.S. Naval Vessels, 1945 (SHIPS-8(A) Vol. I), Bureau of Ships, Navy Department, 15 April 1945 - individual-vessel entry for LeHardy DE-20 (declassified scan via shipscribe.com) [other_primary]
- Locator
- Ships' Data 1945 Vol. I, DE vessel table, pp. 250-251 (LeHardy row 195)
- Finding type
- historical_record
- Finding
- Official BuShips data-book entry for this hull (pp. 250-251, Destroyer-Escort Vessels table): 'LEHARDY | DE20 | GMT | Navy Yard, Mare Island | 1,649,400 | Nov. 1, 1941 | Apr. 15, 1942 | Nov. 21, 1942 | May 15, 1943' - i.e., DE-20 assigned to design group GMT; built at Navy Yard, Mare Island; contract price (hull and machinery) $1,649,400; authorizing act dated 1 November 1941; keel laid 15 April 1942; launched 21 November 1942; date of first commission 15 May 1943. All three construction dates corroborate DANFS exactly.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1941-1945
- Population
- Mare Island construction trades 1942-43
- Limitations
- Official building/accountability record; documents group assignment, builder, contract, and dates - not materials or asbestos content. The GMT group designation is the ship-specific datum here; what the group designation means mechanically is defined at group level (see ev-uss-lehardy-de20-03).
- Atlas source
- true
- Evidence ID
- ev-uss-lehardy-de20-02
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[4]Ships' Data, U.S. Naval Vessels, 1945 (SHIPS-8(A) Vol. I), Bureau of Ships - Destroyer-Escort design-group characteristics table, pp. 234-235 [other_primary]
- Locator
- Ships' Data 1945 Vol. I, DE design-group characteristics table, pp. 234-235
- Finding type
- historical_record
- Finding
- Official design-group characteristics table for destroyer escorts: 'GMT = Diesel electric tandem motor drive - short hull.' GMT group characteristics: length overall 289 ft 5 in, waterline 283 ft 6 in, extreme beam 35 ft 2 in, standard displacement 1,140 tons, full-load 1,430 tons, trial speed 21.5 knots; machinery: 2 propellers, 'G. M. diesel model 16-278A,' 6,000 shaft horsepower; boilers column: none. Applies to DE-20 via its ship-specific GMT group assignment (ev-uss-lehardy-de20-02).
- Verification
- verified
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-28
- Study period
- 1945 (publication); describes 1942-43 construction
- Limitations
- Group-level machinery definition applied to this hull through its official group assignment; establishes the propulsion type (diesel-electric, no steam plant and no boilers) but documents no materials and no asbestos content. Group characteristics describe the design; individual-ship as-built variation is not ruled out by this source.
- Atlas source
- true
- Evidence ID
- ev-uss-lehardy-de20-03
-
[5]Ships' Data 1945 GMT group machinery record (no boilers; diesel-electric) + Atlas shipyard dataset, Mare Island Naval Shipyard record (tier 2; asbestos products documented at yard) [other_primary]
- Locator
- Ships' Data 1945 Vol. I pp. 234-235, 250-251; shipyards.json record 'mare-island-naval-shipyard'
- Finding type
- asbestos_application
- Finding
- Era/yard inference: an Evarts-class (GMT design group) destroyer escort built 1942-43 has NO boilers or steam system, so the largest asbestos categories of steam ships (boiler insulation and steam-line lagging) do not apply; era-standard asbestos uses aboard a diesel-electric escort would concentrate in exhaust-system insulation, machinery-space lagging, gaskets and packing, electrical insulation, fireproofing, and deck coverings. Builder Mare Island Navy Yard is documented in the Atlas shipyard dataset (tier 2) with named asbestos products (Unibestos, Marinite, Transite, Kaylo, Careytemp, packing and gaskets) in later decades.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-28
- Study period
- 1942-1945
- Population
- Mare Island construction trades 1942-43; crew 1943-45
- Limitations
- Class/era and builder-yard inference only - NOT a hull-specific finding. The verified Mare Island product records post-date this hull's construction (products documented 1968-1994, e.g. the 1968 Metalclad Unibestos contract and Collins-era pipe coverings) and cannot be read back onto a 1942-43 build. No ship-specific asbestos itemization exists; does not quantify material or establish any individual's exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-lehardy-de20-04
-
[6]NARA holdings leads: WWII deck logs (RG 24) for DE-20; Mare Island Navy Yard records (RG 181); BuShips General Information Books (RG 19) - per-vessel material specifications [other_primary]
- Locator
- catalog.archives.gov (RG 24 / RG 181 / RG 19 series); not digitized
- Finding type
- historical_record
- Finding
- Unretrieved archival leads that could hold hull-level material documentation: NARA RG 24 WWII deck logs for DE-20 (1943-45); Mare Island Navy Yard construction records under RG 181 (the builder); BuShips General Information Books (RG 19), which hold per-vessel material specifications where they survive. No digitized hull-level material record was located online.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-28
- Study period
- 1942-1946 (record coverage)
- Limitations
- Archival lead only - these repositories are unsearched for this hull; no ship-specific material specification was retrieved. Deck logs record operations, not materials; the GIB is the likelier material-spec source if a volume for DE-20 exists.
- Atlas source
- true
- Evidence ID
- ev-uss-lehardy-de20-05
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[7]Batch-4116 search ledger (this record): DANFS transcription; official Ships' Data 1945 entry; NVR; secondary compilations; CourtListener exact-name and hull-number queries; general web sweep [other_primary]
- Locator
- search_ledger rows sl-uss-lehardy-de20-01 through sl-uss-lehardy-de20-08
- Finding type
- litigation_documented
- Finding
- No qualifying ship-specific asbestos record located for DE-20: no hull ACM survey, no abatement or hazmat disclosure (the hull was sold for scrapping in December 1946, before any survey regime existed), and CourtListener searches by vessel name and hull number located no qualifying asbestos case naming this hull. Web sweep returned only law-firm/marketing template pages (asbestos-ships.com, shepardlawfirm.com, freeasbestostesting.com) that generate a page per hull - excluded as non-authoritative under batch rules.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 2026-09-28
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - era materials are undocumented rather than ruled out; does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-lehardy-de20-06