Evidence
13 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-13).
-
[1]research packet jy-packet.md (5 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED — real identity: Trumpeter** | Hull: **DE-279** | Designation: destroyer escort | Class: **Evarts
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-de-279-de279-pkt-jy-packet-md
-
[2]Dictionary of American Naval Fighting Ships, 'Trumpeter' entry, Vol. 7 pp.310-311 (1981) - live NHHC pages 404 under both URL schemes (/research/.../danfs/k/kempthorne.html and /content/history/nhhc/.../k/kempthorne.html); verbatim transcription via losthistory.net/hazegray mirror (transcribed by Michael Hansen) [nhhc_danfs]
- Locator
- DANFS Vol. 7 pp.310-311, 'Trumpeter' entry - namesake biography + DE-279 paragraph (no printed spec block for this hull)
- Finding type
- vessel_history
- Finding
- DANFS entry 'Trumpeter' (Vol. 7, pp.310-311, 1981) covering this hull: namesake Lt. (j.g.) George Nelson Trumpeter, USNR, killed in air combat 8 November 1942 flying an F4F from USS Santee (CVE-29) during Operation Torch. 'DE-279 - originally named TRUMPETER - was renamed KEMPTHORNE in June 1943 when the Bureau of Ships decided that, upon completion, the EVARTS class destroyer escort would be turned over to the United Kingdom. Laid down on 5 June 1943 by the Boston Navy Yard, the warship was launched on 17 July 1943 and was formally transferred to the United Kingdom on 23 October 1943 under terms of the Lend-Lease agreement. KEMPTHORNE (K.483) served the Royal Navy in the North Atlantic as a CAPTAIN class frigate through the end of World War II. In May 1945, she was one of two British warships which presided over the surrender of the German U-boats at Trondheim, Norway. While still in England, KEMPTHORNE was returned to the custody of the United States on 20 August 1945 and was commissioned in the United States Navy the same day for the voyage home. The destroyer escort arrived at Philadelphia on 8 September 1945 and was decommissioned at the navy yard there on 17 October. Struck from the Navy list on 1 November 1945, KEMPTHORNE was scrapped by 28 May 1946.'
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1943-1946
- Population
- Boston Navy Yard construction workforce 1943; Royal Navy crew 1943-1945; USN return-voyage steaming crew Aug-Oct 1945
- Limitations
- DANFS documents identity, namesake, build/transfer/disposal chronology - no asbestos, insulation, or materials information and supports no asbestos claim. Prints no specifications block for DE-279 (unlike commissioned USN entries), so displacement/complement/propulsion figures come from class sources. 'One of two British warships' at Trondheim does not name the companion vessel. Mirror transcription cited because live NHHC URLs return 404.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-01
-
[3]Bureau of Ships, Ships' Data, U.S. Naval Vessels, 1945, Vol. I, 'Vessels Transferred to Foreign Governments Under Lend Lease - Transferred to United Kingdom' (shipscribe.com scan SDB1945v1.pdf) [other_primary]
- Locator
- Book pp.350-351 = PDF p.185; row 'KEMPTHORNE ... DE279 ... Destroyer-escort vessel ... 23 Oct 1943' (OCR-verified)
- Finding type
- vessel_history
- Finding
- Contemporaneous official BuShips roster documents this hull's transfer: 'Ships' Data, U.S. Naval Vessels, 1945' Vol. I (NAVSHIPS 250-010 series), 'VESSELS TRANSFERRED TO FOREIGN GOVERNMENTS UNDER LEND LEASE - TRANSFERRED TO UNITED KINGDOM' table lists 'KEMPTHORNE | DE279 | Destroyer-escort vessel | 23 Oct 1943' - book pp.350-351, read directly at 300 dpi + tesseract OCR from the shipscribe.com scan. Adjacent rows corroborate the Boston-built Captain-class cohort (AFFLECK 30 Sept 1943, AYLMER 7 Oct 1943, KINGSMILL DE280 29 Oct 1943).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1943-1945 (roster promulgated April 1945)
- Limitations
- Contemporaneous official U.S. Navy roster naming this hull by her Royal Navy name - establishes the transfer date and custody chain only; contains no asbestos or materials data. The table's 'Type' column carries ditto marks ('do.') for destroyer-escort vessel in the scan.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-02
-
[4]NPS Boston NHP: 'The Boston Navy Yard and Destroyer Escorts (DEs)' (nps.gov/articles/000/bny-destroyer-escorts.htm, updated 2026-05-26); 'Ships Built by the Charlestown Navy Yard' dataset CSVs (nri-CNYShipsBuiltWeb.csv row 'Trumpeter ... DE-279'; nri-CNYForeignNamesWeb.csv row 'DE-279, Britain'); 'We Can Do It!' article (nps.gov/articles/cny-swons.htm, BOSTS 14958 caption) [nps]
- Locator
- bny-destroyer-escorts.htm photo caption BOSTS 14958 + program statistics; CNYShipsBuiltWeb.csv 'Trumpeter' row; CNYForeignNamesWeb.csv 'DE-279' row
- Finding type
- historical_record
- Finding
- National Park Service (Boston National Historical Park) records name this hull explicitly: (a) photo BOSTS 14958, 'Women workers at the Boston Navy Yard (BNY) in 1943 welding the hull of a Destroyer Escort ship, the HMS KEMPTHORNE, built for the Royal Navy under the Lend Lease Act' - the well-known women-welders image, taken June 1943 (NavSource caption dates it June 1943; the NPS DE article frames it among ~8,000 women in a ~50,000-person 1943 workforce); (b) NPS 'Ships Built by the Charlestown Navy Yard' dataset row: 'Trumpeter, Escort Vessel, DE-279, 1943 Jun 5, 1943 Jul 17, 1945 Aug 20 [commissioned], Loaned to Britain 1943-1945; named Kempthorne (1945); sold 1946' with footnote 'Placed in U.S. Navy service on return from loan to Great Britain; retained Royal Navy names Grindall and Kempthorne, respectively'; (c) NPS DE article documents the yard context: 62 DEs built at Boston Navy Yard during WWII (31 for USN, 31 for RN), 52 of them Evarts class, and Boston led all 16 DE-building yards in 1943 launches.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1943; datasets current to 2026
- Population
- Boston Navy Yard construction trades 1943, incl. ~8,000 women workers (welders, electricians, pipefitters, etc.)
- Limitations
- NPS records document construction, workforce, and custody of this hull - not asbestos or materials content. The women-welders photo establishes welding trades aboard this hull during construction; it is not evidence of any specific material. The foreign-names CSV misspells the name 'Dempthorne' (dataset typo - carried in gaps).
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-03
-
[5]NavSource Online: Destroyer Escort Photo Archive, 'Trumpeter (DE 279) / HMS Kempthorne (K.483)' (navsource.net/archives/06/279.htm, page updated 2009-01-06) [other_primary]
- Locator
- Specifications block + building/operational data block + photo captions (navsource.org host fetch-failed; .net alias served)
- Finding type
- historical_record
- Finding
- NavSource Destroyer Escort Photo Archive page 'Trumpeter (DE 279) / HMS Kempthorne (K.483)': class Evarts (lend-lease), type GMT (diesel-electric tandem motor drive, short hull, 3in guns); displacement 1,140 t light / 1,430 t full; length 283'6" wl / 289'5" oa; beam 35'; draft 11'; propulsion 4 GM Model 16-278A diesel engines with electric drive, 6,000 shp, 2 screws; speed 19 kt; range 4,150 nm @ 12 kt; armament 3x3"/50 Mk22, 4x20mm Mk4, 4 Mk6 DCP, 2 Mk9 DCT; complement 156; contract awarded 25 Jan 1942; named Trumpeter 27 May 1943; keel laid 5 Jun 1943 Boston Naval Shipyard; launched 17 Jul 1943 sponsored by Mrs. John D. Crecca; transferred to RN / commissioned HMS Kempthorne 23 Oct 1943; returned to USN 20 Aug 1945; decommissioned Philadelphia NSY 17 Oct 1945; stricken 1 Nov 1945; scrapped at Philadelphia NSY completed 28 May 1946.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1942-1946
- Limitations
- Volunteer-compiled archival reference, not an official record - figures corroborated where they match DANFS/BuShips/NPS (build dates, transfer, stricken, scrapping). Sponsor name and contract date are NavSource-only details. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-04
-
[6]Naval-History.Net, 'HMS KEMPTHORNE (K 483) - Captain-class Frigate including Convoy Escort Movements' (Mason service-history compilation + Kindell convoy addendum) [other_primary]
- Locator
- Service history year-by-year sections 1943-1945 + 'Post War Notes' + convoy escort movement table
- Finding type
- historical_record
- Finding
- RN service record for this hull (Lt Cdr Geoffrey B. Mason RN (Rtd) service-history compilation, naval-history.net, ed. Gordon Smith): build completed 23 Oct 1943, acceptance trials, commissioned for RN service 31 Oct 1943; Bermuda workup Nov-Dec 1943; convoy HX 274 Halifax passage Jan 1944; Belfast refit at Pollock Dock replacing U.S. equipment (Admiralty gyro compass, depth-charge arrangements, ASDIC/sonar mods, RN radio direction finding); joined 5th Escort Group (Western Approaches Command, SO Cdr D. MacIntyre) April 1944; convoy ONS 233 escort; support to 9th (RCN) Escort Group with HMS Vindex during May 1944 operations in which U-765 was sunk; South Western Approaches A/S patrols covering the Normandy landings (present at U-767 sinking of HMS Mourne 15 Jun 1944 and Bickerton's sinking of U-269 25-26 Jun; group attacked by U-984, HMS Goodson T5-hit); Home Fleet screening Aug 1944 - screened escort carriers HMS Nabob and HMS Trumpeter during Operation Goodwood (Tirpitz strikes); when U-354 torpedoed Nabob and Bickerton 22 Aug 1944, Kempthorne took off Bickerton's casualties and non-essential personnel before her scuttling; KMF/MKF convoy escort to Naples; Irish Sea/NW Approaches A/S sweeps including the Jan 1945 U-1172 (Aylmer rammed and sank) and U-1051 actions; paid off May-Jun 1945 for early return to USA, passage manned by steaming party, returned to USN 20 Aug 1945. Battle honour ATLANTIC 1944-45. Don Kindell convoy-movement addendum lists Kempthorne escort passages: HX 274, ON 233, ON 253, KMF 036, MKF 036, MKF 037, HX 332, HX 334, HX 339, MKS 095G.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1943-1945
- Population
- Royal Navy crew, 5th Escort Group, 1943-1945; Belfast refit workers Jan-Mar 1944
- Limitations
- Secondary compilation transcribing official RN records - detailed but not itself an official source; specific operational claims are consistent with DANFS and uboat.net where they overlap. Mason's note: Kempthorne 'took part in most anti-submarine operations' of the group but shared in no sinking credits; RN monthly deck logs, if they survived postwar destruction, would be at The National Archives (Kew) - survival unverified. No asbestos or materials content. The Belfast refit row establishes equipment replacement aboard this hull in early 1944 - a documented yard work event under RN custody.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-05
-
[7]uboat.net Allied Warships, 'HMS Kempthorne (K 483)' (warship ID 5476) [other_primary]
- Locator
- Warship fact box + commanding officers + notable events sections
- Finding type
- historical_record
- Finding
- uboat.net Allied Warships record for HMS Kempthorne (K 483): Captain-class frigate; built Boston Navy Yard; ordered 25 Jan 1942; laid down 5 Jun 1943; launched 17 Jul 1943; commissioned 23 Oct 1943; 'one of two warships that witnessed the German surrender at Trondheim, Norway in May 1945'; returned to USN 20 Aug 1945 while in England and commissioned into the USN that day; scrapped May 1946. Commanding officers listed: Lt.Cdr. Alan Brown RNR (24 Oct 1943 - Dec 1944); Lt. Harry James Alfred Wilson RN (Dec 1944 - mid 1945). Notable-events index includes Jan 1944 Argentia/St. John's movements with HMCS Kootenay, HMS Goodson, HMS Steadfast and the Aug 1944 Nabob/Bickerton/Goodwood entries.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1942-1946
- Population
- Royal Navy crew 1943-1945
- Limitations
- Secondary database corroborating DANFS/naval-history.net chronology; 'commissioned 23 Oct 1943' conflicts with naval-history.net's 31 Oct RN-commission date (variance carried in gaps). Ordered-date 25 Jan 1942 conflicts with Wikipedia/naval-history.net's 18 Jan 1942 (carried in gaps). No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-06
-
[8]NavSource class specifications (GMT propulsion) + Atlas shipyards.json records 'boston-naval-shipyard' (tier 3) and 'philadelphia-naval-shipyard' (tier 3) [other_primary]
- Locator
- NavSource DE-279 spec block; shipyards.json yard_id 'boston-naval-shipyard' and 'philadelphia-naval-shipyard'
- Finding type
- asbestos_application
- Finding
- Era/design inference: DE-279 is an Evarts-class (GMT = GM diesel-electric tandem motor drive) destroyer escort built at the Boston Navy Yard in 1943 - four GM 16-278A diesel engines with electric drive, no boilers, no steam plant. The heavy asbestos categories of steam warships (boiler insulation, steam-line lagging) therefore do not apply to this hull; the era-consistent application set for a diesel-electric escort is exhaust-system insulation, gaskets and packing, electrical insulation, winch/windlass brake linings, and deck coverings, inside the documented Navy asbestos era (see GAO row). Builder-yard context: Boston Naval Shipyard is a tier-3 yard in the Atlas dataset (WWII peak employment 50,128 in 1943; litigation product-id for John Crane gaskets/packing exposure at the yard in In re John Crane, Inc., Tex. App. 2003); Philadelphia Naval Shipyard, the decommission/scrapping site, is also tier-3 with multiple litigation-documented asbestos products.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-28
- Study period
- 1943-1946
- Population
- Boston Navy Yard construction trades 1943; RN crew 1943-45; Philadelphia NSY disposal workforce 1945-46
- Limitations
- Class/era and builder-yard inference only - NOT a hull-specific finding. No materials schedule, survey, or crew record for DE-279 was located; this row establishes era plausibility, not installed materials. The diesel-electric plant means the largest asbestos categories of steam ships do not apply. Establishes no quantity, no location, no individual exposure, no causation, and no legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-07
-
[9]GAO HRD-80-2, report on Navy asbestos hazards (product page, gao.gov) [gao]
- Locator
- GAO product page description (gao.gov returns HTTP 403 to automated fetch - description-only access, same standing limitation as Batch-01)
- Finding type
- gov_survey
- Finding
- Program-level context: GAO's 1979 report on Navy asbestos protection (HRD-80-2) conveys the Navy's statement that 'thermal insulation for machinery, equipment and piping systems has been the major application of asbestos' and that substitution of asbestos-free materials did not begin until the early 1970s - placing this hull's 1943 construction squarely inside the documented asbestos-use era for U.S. Navy ships.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-09-28
- Study period
- 1979 (report); applicability to 1943 construction era
- Limitations
- Navy-wide program-level context only - the report's fieldwork covered specific yards and its quoted language describes the fleet generally; it names no DE-279 or Boston Navy Yard record and establishes nothing about materials aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-08
-
[10]CourtListener API v4 search results (opinion index), queries '"DE-279"', '"USS Trumpeter"', '"Kempthorne" asbestos', and '"HMS Kempthorne"' [court_record]
- Locator
- search_ledger rows sl-uss-de-279-de279-08 through sl-uss-de-279-de279-12
- Finding type
- litigation_documented
- Finding
- CourtListener sweep (authenticated API v4 via cl-auth-search.py, 2026-09-28): '"DE-279"' (type=o) returned 20 hits, all identifier collisions - 'DE-279'/'DE 279' occurs as docket-entry/record citations in unrelated matters (United States v. Ransfer; Fair Housing Center v. Sonoma Bay; CFTC v. S. Trust Metals; Kaiser v. Johnson & Johnson; State v. Scheffield; et al.); zero asbestos mentions and zero vessel references in screened results. '"USS Trumpeter"' (type=o) returned 0 hits - no published opinion contains that exact phrase (and any 'USS Trumpeter' litigation reference would presumptively attach to DE-180, the Cannon-class Trumpeter that saw USN commissioned service 1943-1947). '"Kempthorne" asbestos' (type=o) returned 27 hits, all surname/legal-citation collisions (Cobell v. Kempthorne and other Interior Secretary-era case-name citations; asbestos opinions citing unrelated Kempthorne-named authority) - zero vessel references in screened results. '"HMS Kempthorne"' (type=o) returned 0 hits - no published opinion contains that exact phrase. The type=r docket-level sweep was pacing-blocked this session (fleet-wide request budget spent; helper's stand-down guidance observed).
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 2026-09-28
- Limitations
- Sweep result, not a merits finding: opinion-index coverage supports 'no published opinion names this hull under either name or its hull number', but pleadings naming the hull without a published opinion would not surface at type=o, and the type=r docket sweep was pacing-blocked this session - unscreened in-document mentions cannot be ruled out. 'Kempthorne' is also a high-collision surname (Interior Secretary Dirk Kempthorne recurs as a government defendant and as cited authority); any future hits require vessel-context review.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-09
-
[11]Cross-source reconciliation: DANFS (losthistory mirror); BuShips Ships' Data 1945 roster; NPS Charlestown datasets; NavSource DE-279; naval-history.net; uboat.net; Wikipedia Captain-class list [other_primary]
- Locator
- Row-by-row as listed; locators are the per-row citation values of ev-01 through ev-06
- Finding type
- historical_record
- Finding
- Source discrepancies resolved or logged: (a) RN commissioning - DANFS and the BuShips roster record transfer to the UK on 23 Oct 1943 (NavSource/uboat.net/Wikipedia Captain-class list also read 23 Oct as RN commission); naval-history.net's Mason service history reads build completion 23 Oct and RN commissioning 31 Oct 1943 - both dates carried, conflict in gaps. (b) Order/contract date - naval-history.net and Wikipedia read ordered 18 Jan 1942; NavSource and uboat.net read contract awarded/ordered 25 Jan 1942 - carried in gaps. (c) Disposal - NavSource reads 'scrapped at Philadelphia NSY, completed 28 May 1946'; DANFS reads 'scrapped by 28 May 1946'; naval-history.net and Wikipedia read 'sold for scrap May 1946' - carried in gaps. (d) NPS foreign-names dataset lists this hull as 'Dempthorne' - a dataset misspelling of Kempthorne, not a distinct name. (e) Namesake naming order - NavSource reads 'named Trumpeter 27 May 1943' while DANFS records the rename to Kempthorne 'in June 1943' and DE-180 was subsequently named Trumpeter - consistent sequence, carried as fact.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1942-1946
- Limitations
- Reconciles publication-level discrepancies among official, archival, and secondary sources; none of the sources contains asbestos information, and none of the variances affects the identity or the custody timeline that the asbestos record depends on.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-10
-
[12]Batch-4201 search ledger (this record): DANFS via losthistory.net mirror; BuShips Ships' Data 1945 Lend-Lease roster (shipscribe.com, OCR-verified); NPS Boston NHP article + datasets; NavSource DE-279; naval-history.net; uboat.net; NVR check; Atlas shipyards.json; CourtListener name/hull sweeps (partial - pacing-limited); general-web asbestos-mention check; GAO HRD-80-2 product page [other_primary]
- Locator
- search_ledger rows sl-uss-de-279-de279-01 through sl-uss-de-279-de279-16
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located for DE-279: no asbestos survey, abatement contract, hazmat disclosure, materials schedule, court finding, or docketed asbestos case naming this hull was found in the public sources searched (see search_ledger). The custody pattern explains the absence: the hull transferred on completion to the Royal Navy, served 1943-1945 under the British flag, and was scrapped at Philadelphia NSY by May 1946 - there was no U.S. crew era beyond the Aug-Oct 1945 return-voyage commission, no postwar USN overhaul or mothball program, and no museum phase under which asbestos documentation would typically be generated in English-language public sources; RN disposal-era records are not digitized in the sources reviewed.
- 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 - a 1943 Boston-built diesel-electric escort is era-consistent with asbestos-containing exhaust insulation, gaskets, packing, electrical insulation, brake linings, and deck coverings. This row records that no ship-specific documentation was located; it does not establish presence or absence, exposure, or legal eligibility, and the Kew/NARA archival leads are unsurveyed.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-11
-
[13]The National Archives (UK) ADM series + Public Record Office deck-log note in naval-history.net post-war notes; NARA Guide to Federal Records RG 24/RG 19 [other_primary]
- Locator
- naval-history.net 'Post War Notes' (PRO Kew deck-log survival note); archives.gov RG 24/RG 19 guides
- Finding type
- historical_record
- Finding
- Archival leads (not retrieved - research-room or reproduction order; no spend authorized): (a) The National Archives (Kew), ADM series - HMS Kempthorne ship's monthly deck logs 1943-45 if they survived postwar record destruction (naval-history.net flags survival as unconfirmed) plus Captain-class frigate materials/fit records; (b) NARA RG 24 'Logbooks of U.S. Navy ships and stations, 1801-1946' - any DE-279/Kempthorne deck-log coverage would span at most the Aug-Oct 1945 return-voyage USN commission; (c) NARA RG 19 (BuShips) construction records and any DE-279 General Information Book; Boston Navy Yard production records for the 1943 DE program; (d) Lend-Lease transfer instrument dated 23 Oct 1943 and the 20 Aug 1945 return-custody documentation.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-28
- Study period
- 1943-1946 records
- Limitations
- Finding-aid/collection-level mapping only - collections were identified but not read; whether they contain any materials/insulation information is unknown. Nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-de-279-de279-12