Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
-
[1]research packet 1055-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-342-yms342-pkt-1055-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-342 (11/19342) - milestone timeline, specifications, commanding officer, call sign [other_primary]
- Locator
- NavSource 11/19342.htm header block, specifications block, commanding-officers table
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 11 January 1943 by the Bellingham Marine Railway and Boat Building Co., Bellingham, WA; launched 5 April 1943; completed 16 October 1943; struck from the Naval Register 15 August 1946; 'Destroyed 4 March 1948.' Spec block: displacement 270 t., length 136', beam 24'6", draft 8', speed 15 kts., complement 32; armament one 3"/50 dual-purpose mount, two 20mm mounts, two depth-charge projectors; propulsion 'Two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts.' Call sign Nan - Queen - Love - Oboe. Commanding officer: LTJG N. F. Murphy, USNR (1945). No photograph of this hull exists in the archive; 'There is no DANFS history available for YMS-342.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1948
- Population
- Bellingham construction trades (1943); crew (1943-46)
- Limitations
- NavSource is a volunteer secondary compilation tracking NVR/DANFS data, not a primary registry - its milestone dates are consistent here with uboat.net and the builder's own hull table. Contains no asbestos or material content. 'Completed' is carried for the in-service date; uboat.net renders the same date as 'Commissioned.' Propulsion figure printed as '880bhp' - the class standard was 440 bhp per GM 8-268A engine (two shafts); likely a total or transcription figure (see gaps).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-01
-
[3]National Archives, Special List 44: List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 (Washington, DC, 1978), printed page 520 - signal-number designations section (verified via Allen County Public Library Genealogy Center scan, display page 552; NARA publication) [other_primary]
- Locator
- Special List 44, printed p. 520 (Ships with Symbol and Number Designations); ACPL scan images/narasl44/552.jpg
- Finding type
- historical_record
- Finding
- NARA Special List 44 inventories four deck logbooks for YMS-342: 'YMS-342 | Oct. 16, 1943-June 30, 1945 | 4' (logbooks held at the National Archives, covering commissioning day through mid-1945). The logbooks are the primary location/track record of her WWII service - daily positions, operations, personnel events - and confirm the hull's WWII Navy service within the 1930-1986 coverage window.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-10-16 to 1945-06-30 (log coverage); inventory compiled 1978
- Population
- crew (1943-45)
- Limitations
- An inventory entry, not the logs themselves: SL44 establishes that four logbooks exist and their date span (16 Oct 1943 - 30 Jun 1945); it does not provide log contents. The inventory predates later accessions - her post-30 June 1945 service (Japan-area minesweeping Sep 1945 - Feb 1946 through stricken Aug 1946) falls outside SL44's coverage and those logs, if extant, sit in other accessions. Log coverage dates are not asserted commissioning/decommissioning dates. Scan verified via the ACPL mirror of the NARA publication; the archives.gov landing page is https://www.archives.gov/research/military/logbooks/special-list-44-named (batch lead cited PDF page 119 of the section PDF = printed p. 520).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-02
-
[4]Bureau of Naval Personnel, Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953), Part IV section 2(16) Area Campaign Medals - ship engagement-star credit list (verbatim transcription via HyperWar, ibiblio.org) [other_primary]
- Locator
- Awards-IV-16.html, Asiatic-Pacific Area ship list, 'YMS 342:' block; code definitions same file (P32-2, P34-1, P41-1, P207-10, P207-13, P207-18)
- Finding type
- vessel_history
- Finding
- Official USN campaign-participation credits for this hull: 'YMS 342:' - Lingayen Gulf landing (P32-2, Luzon operation) 4-18 Jan 1945; Zambales-Subic Bay (P41-1) 29-31 Jan 1945; assault and occupation of Okinawa Gunto (P34-1) 25 Mar - 28 May 1945; and under Minesweeping Operations Pacific (P207): Sasebo, Kyushu-Korea area (P207-13) 11-13 Sep 1945; Fukuoka, Kyushu-Korea area (P207-18) 18-25 Oct 1945 and 9-29 Nov 1945; Kure-Hiroshima, Honshu area (P207-10) 7 Jan - 10 Feb 1946. Operation-name mapping verified against the same manual's engagement-code table (P32-2 'Lingayen Gulf landing' 4-18 Jan 45; P41-1 'Zambales-Subic Bay' 29-31 Jan 45; P34-1 'Assault and occupation of Okinawa Gunto' 24 Mar - 30 Jun 45; P207-13 'Sasebo' 9 Sep - 17 Oct 45; P207-18 'Fukuoka' 13 Oct 45 - 11 Jan 46; P207-10 'Kure-Hiroshima' 27 Oct 45 - 26 Feb 46).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-01-04 to 1946-02-10
- Population
- crew (1945-46, combat and post-surrender minesweeping)
- Limitations
- Credits establish participation windows, not daily positions or what sweeping she performed; engagement-star windows are official credit dates, not necessarily continuous presence. Notably the manual credits NO Leyte landing star (P31-x) despite documented presence in Leyte Gulf 21 Oct 1944 (see ev-05) - the credit list stands as written; a boat can be present without earning a campaign credit. Contains no asbestos or material content. 1953 revision predates her 1948 destruction - no post-1953 amendments located for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-03
-
[5]Commander Naval Base, Manus, Admiralty Islands, war-diary report to Commander in Chief, U.S. Fleet, serial 01238 of 13 Dec 1944 as corrected 14 Dec 1944 - 'Disaster of 10 November 1944' ship-damage/casualty table for the USS Mount Hood (AE-11) explosion (verbatim transcription via HyperWar, ibiblio.org) [other_primary]
- Locator
- ae11-Loss.html, CNB Manus ltr. serial 01238 para. 6, damage table row 'YMS-342 *Minor'
- Finding type
- vessel_history
- Finding
- The official Navy damage table for the 10 November 1944 Mount Hood explosion at Seeadler Harbor, Manus, lists this hull: 'YMS-342 | *Minor' with zero known dead, missing, or injured - present in the harbor when the ammunition ship (~3,800 tons of explosives) detonated, hurling fragments more than 2,000 yards; total table losses 107,367 estimated repair man-hours, 45 known dead, 327 missing, 371 injured across the harbor's ships and craft.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-11-10
- Population
- crew (Nov 1944); harbor population under blast
- Limitations
- Establishes presence and minor blast damage at Seeadler Harbor on 10 Nov 1944; '*No estimate furnished' for repair man-hours, so damage extent beyond 'Minor' is undocumented (blast debris vs fragment penetration vs top-side damage unspecified); does not identify where in the harbor she lay or which of the YMS photographed alongside USS Mindanao she was. War diary is an official USN record; HyperWar is a verbatim transcription mirror. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-04
-
[6]USS LST-125 deck log for 19-24 October 1944 (transcribed by Susan Bloom, NavSource Amphibious Photo Archive 10/16/160125l2) - wartime deck-log transcription [other_primary]
- Locator
- NavSource 10/16/160125l2.htm, LST-125 deck log, Saturday 21 October 1944 entries 0944-1003
- Finding type
- historical_record
- Finding
- The transcribed deck log of USS LST-125 places this hull in the Leyte Gulf transport area the morning after the A-Day landings: 'Saturday, 21 October 1944 ... 0944 USS YMS 342 came along starboard side for fuel and fesh [sic] water. ... 0959 YMS 342 left starboard side. 1003 USS YMS 71 left port side. CTG 79.1 corrected his orders in the respect for the above vessels to get fuel and water elsewhere.' - operating with the Seventh Fleet amphibious force (LST-125 beached Blue Beach I, Leyte, 22 Oct).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-10-21
- Population
- crew (Oct 1944)
- Limitations
- Volunteer transcription of a primary deck log hosted on NavSource - the underlying log page image is not displayed; content-level verification partial. Establishes presence in Leyte Gulf 21 Oct 1944 but the awards manual credits no Leyte-operation star to this hull (see ev-03 limitations) - presence in the gulf is not equivalent to a credited landing role. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-05
-
[7]shipbuildinghistory.njscuba.net (Tim Colton's Shipbuilding History), 'Bellingham Marine, Bellingham WA' yard table and company profile [other_primary]
- Locator
- Bellingham yard table rows YMS-269..YMS-413 (YMS-342 row); company profile paragraph
- Finding type
- vessel_history
- Finding
- The builder's hull table records this hull: US Navy minesweeper YMS-342, no official number (O/N) assigned, 278 tons (light displacement), 136 ft. LOA, delivered 16 Oct 1943, 'struck 1946.' Yard profile: Bellingham Marine Railway Co. was a boat-repair business from the early 20th century, became Bellingham Marine Railway and Boatbuilding Co. in 1921 (new facility on the Whatcom Creek waterway at Squalicum Creek, ~48.752 N -122.488 W), merged with Bellingham Iron Works in 1941 to form Bellingham Shipyards, renamed Bellingham Marine post-war, closed 1963. Wartime output at the yard included BYMS-17 through -20 for the Royal Navy, YMS-269 through -276, YMS-342 through -345, YMS-410 through -413, PCS-1461 through -1465, and ATR-68 through -73.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941-1946 (wartime production window)
- Population
- Bellingham yard construction trades (1941-45 wartime workforce)
- Limitations
- Independent secondary compilation of yard records - consistent with NavSource/uboat.net on dates (delivered = completed/commissioned 16 Oct 1943). The 278 t. figure is light displacement vs NavSource's 270 t. spec - both carried, not reconciled. Yard naming: the company was legally Bellingham Shipyards post-1941 merger but Navy-era records and NavSource carry 'Bellingham Marine Railway and Boat Building Co.' - both names refer to the same Bellingham, WA yard. Contains no asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-06
-
[8]uboat.net Allied Warships of WWII (Gudmundur Helgason compilation), USS YMS-342 (YMS-342) ship page [reputable_press]
- Locator
- uboat.net/allies/warships/ship/9762.html data table
- Finding type
- vessel_history
- Finding
- Secondary registry concordance for this hull: built by Bellingham Marine Railway and Boatbuilding Co., Bellingham, WA; ordered 13 April 1942; laid down 11 January 1943; launched 5 April 1943; commissioned 16 October 1943; stricken 15 August 1946 - all milestones consistent with NavSource and the builder's table.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1946
- Population
- crew (1943-46)
- Limitations
- Reputable secondary compilation, not a primary registry; the 'ordered 13 Apr 1942' contract date is single-source (see gaps). 'Commissioned' wording for the 16 Oct 1943 date vs NavSource 'Completed' - same event. Contains no asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-07
-
[9]Era inference built on: NavSource spec block (diesel propulsion, wooden-hulled YMS-1 class); YMS-1 class design data (Wikipedia class summary, NavSource sister-hull pages: wooden hull construction for non-magnetic minesweeping, GM 8-268A diesel plant, no steam plant); GAO HRD-80-2 Navy asbestos-use era (see ev-09) [other_primary]
- Locator
- NavSource 11/19342.htm spec block; YMS-1 class design summaries; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- A wooden-hulled diesel-powered minesweeper built in 1943 sits inside the Navy's documented asbestos era, but materially outside the steam-plant pathway: with no boilers or turbines, the boiler/steam-line lagging load of larger combatants does not apply. Era-standard asbestos-relevant applications aboard small diesel craft of the period were concentrated in the machinery space - diesel-engine and exhaust lagging, machinery gaskets and valve packing, electrical cable insulation, fireproof paneling (asbestos-cement board of the Marinite type was the era-standard joiner/fire material), and friction linings on the minesweep winch and capstan gear - at reduced scale relative to steam ships.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1943-1948
- Population
- Bellingham construction trades (1943); crew, esp. engine-room rates (1943-46); 1948 disposal workforce
- Limitations
- Class/era inference only - no hull-specific insulation schedule, material list, or work package located for YMS-342. Names era-standard applications, not confirmed installed materials. No quantity. Wooden-hull construction reduces but does not eliminate asbestos-relevant systems. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-08
-
[10]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- 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 - spanning this hull's entire construction (1943), service era (1943-46), and disposal (1948).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- 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, confirmed 2026-10-04 - same standing defect as Batches 01/98) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-09
-
[11]Batch-8973 search ledger (this record): NavSource 11/19342; NARA Special List 44 scan (ACPL mirror, printed p. 520); NAVPERS 15,790 Part IV via HyperWar; CNB Manus war diary via HyperWar; LST-125 deck-log transcription; shipbuildinghistory Bellingham yard table; uboat.net; GAO product page (blocked); NVR (no entry); NavalCoverMuseum (no page); CourtListener type=o and type=r [other_primary]
- Locator
- search_ledger rows sl-uss-yms-342-yms342-01 through sl-uss-yms-342-yms342-11
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS YMS-342 was found in the public sources searched. All four CourtListener base queries through the fleet helper returned HTTP 200, count 0 (2026-10-04): '"USS YMS-342"' and '"YMS-342"' on both the opinion and docket indexes (search_ledger sl-11). Secondary web sweeps surfaced no qualifying case; the only 'asbestos aboard' material is law-firm/listicle content asserting asbestos without primary sourcing - excluded by source policy.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard. CourtListener covers indexed opinions and dockets only - unindexed state-court and settled filings are outside the sweep. The four SL44 logbooks (Oct 1943-Jun 1945), BuShips construction/work records for the Bellingham contract, and the 1948 destruction/disposal file are undigitized archival leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-342-yms342-10
