Evidence
12 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-12).
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[1]research packet 1054-packet.md (3 sources cited) [museum_official]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-337-yms337-pkt-1054-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-337 (11/19337) - construction milestones, specifications, disposition, merchant registration (verified live 2026-10-04) [other_primary]
- Locator
- NavSource 11/19337.htm - vessel header, specifications block, and registration/fate lines
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 27 November 1942 by the Seattle Ship Building and Dry Dock Co., Seattle, WA; launched 20 February 1943; completed 9 July 1943; struck from the Naval Register 15 August 1946; transferred to the War Shipping Administration 28 February 1948 and sold; registered in 1950 to C. F. Stabbert of Seattle, WA as the miscellaneous-use vessel Willis Shank out of Seattle; 'Fate unknown.' Specifications: displacement 270 t (1950: 208 t), length 136 ft (1950: 126.1 ft), beam 24 ft 6 in (1950: 25 ft), draft 8 ft (1950: 11.3 ft), speed 15 kt, complement 32 (1950: eight); armament one 3-inch/50 dual-purpose mount, two 20mm mounts, two depth-charge projectors; propulsion two 880-bhp General Motors 8-268A diesels, Snow and Knobstedt single-reduction gear, two shafts. Call sign Nan-Queen-Jig-Uncle. Page carries no photograph ('No image of YMS-337 is available at this time') and states 'There is no DANFS history available for YMS-337.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1950
- Population
- Seattle Shipbuilding construction trades (1942-43); Navy crew (1943-46); civilian owners/crew (1948-forward)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates track DANFS/NVR conventions but are not independently sourced on the page. No asbestos or material content. 'Completed' wording rather than 'commissioned' - carried as in-service date; see commissioned field note.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-01
-
[3]National Archives Special List 44, List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 - YMS-337 entry (Allen County Public Library Genealogy Center scanned copy of the NARA publication) [other_primary]
- Locator
- Special List 44, 'Ships with Symbol and Number Designations' section, printed page 519 (ACPL scan image narasl44/551.jpg)
- Finding type
- historical_record
- Finding
- NARA's finding aid inventories physical deck logs for this hull: 'YMS-337 | July 9, 1943-Aug. 31, 1945 | 18' - eighteen logbooks covering the in-service span from completion through the end of hostilities. The logs are the definitive source for this hull's wartime movements and ports; they are held physically and are not digitized in the National Archives Catalog (search within parent series 594258, 'Logbooks of U.S. Navy Ships and Stations,' returns no YMS-337 file units under 'YMS-337' or 'YMS 337', verified 2026-10-04).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-07-09 to 1945-08-31
- Population
- Crew of YMS-337, 1943-1945
- Limitations
- Coverage dates are logbook inventory dates, not asserted commissioning or decommissioning dates - though the 9 July 1943 start coincides with the documented completion date. Post-August-1945 logs (covering the September 1945 - August 1946 period including documented post-surrender Japan sweeping) would fall outside this inventory's accession; their location is an open archival lead. ACPL page image verified (printed book page 519); pagination in the task manifest's PDF edition (page 119) differs but the entry content is confirmed.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-02
-
[4]uboat.net, Allied Warships of WWII: USS YMS-337 (YMS-337) - construction, ordering, commissioning, and disposal data [other_primary]
- Locator
- uboat.net/allies/warships/ship/9757.html - ship data table; class/477.html - YMS class table
- Finding type
- vessel_history
- Finding
- Secondary database row for this hull: 'Built by Seattle Ship Building and Dry Dock Co. (Seattle, Washington, U.S.A.); Ordered 11 Apr 1942; Laid down 27 Nov 1942; Launched 20 Feb 1943; Commissioned 9 Jul 1943; History: Stricken on 15 August 1946, Sold on 28 February 1948.' Class table: YMS class, 494 ships; 270 BRT, 136 ft, complement 32 men, 1 x 3-inch AA gun, 2 x 20mm AA, diesels, 2 shafts, 15 knots.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1948
- Population
- Crew of YMS-337 (1943-46)
- Limitations
- uboat.net's Allied Warships section is a curated secondary database, not a primary registry. 'Ordered 11 Apr 1942' and 'Commissioned' wording appear only here - NavSource/NavalCoverMuseum use 'Completed.' No asbestos or operational content; no commanding officers listed.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-03
-
[5]Nauticapedia (BC's Heritage Vessel Database, Maritime Museum of British Columbia): 'Willis Shank' (built 1943) - merchant-registry ownership chain for ex-YMS-337 [other_primary]
- Locator
- nauticapedia.ca/vessel.php?id=87690 'Owners & Masters' and 'Story' blocks; id=87692 parallel Enterprise record
- Finding type
- vessel_history
- Finding
- Post-Navy trail for this hull documented from registry sources: owned by the United States Navy 1943-1946; United States War Shipping Administration 1948; C.F. Stabbert, Seattle WA, 1950 (name Willis Shank); Assistance Inc., Seattle WA, 1965; 'USA interests' 2022. Hull type 'Wood.' Nauticapedia carries a parallel record for the same hull under the name 'Enterprise (XXXV)' (vessel id 87692, same photograph and same ownership chain). Source line cites Merchant Vessels of the United States (1965), USCG PSIX (viewed 2022), and NavSource.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-2022
- Population
- Civilian owners/crew 1948-forward (C.F. Stabbert; Assistance Inc.; undocumented later operators)
- Limitations
- Secondary heritage database relying on official registries (MVUS 1965, USCG PSIX) - chain is credible but is register data, not a hull-survival or condition record; whether the hull still exists is unestablished. The Enterprise (XXXV) alias rests solely on Nauticapedia. No asbestos content. Photograph captioned 'Navsource.org (North American Indigenous Ministries)' suggests post-Navy ministry use, not verified independently.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-04
-
[6]Navy awards data transcribed from NAVPERS 15,790 (Rev. 1953), Navy and Marine Corps Awards Manual - ship participation listing (commercial transcription host: officialmilitaryribbons.com) [other_primary]
- Locator
- officialmilitaryribbons.com YMS-207-to-361 ship list, 'YMS 337' row; operation code definitions on the P207 page
- Finding type
- vessel_history
- Finding
- The awards listing credits YMS-337 with one operation: '4 Feb 46 - 21 Feb 46 | P207-10 | Kure-Hiroshima (Honshu Area)' - post-surrender minesweeping in Japanese home waters under the Asiatic-Pacific area Minesweeping Operations Pacific campaign code (P207-10 operation window defined as 27 Oct 1945 - 26 Feb 1946). This is the only operation listed for the hull - no combat engagement star appears in the transcription.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1946-02-04 to 1946-02-21
- Population
- Crew of YMS-337, Feb 1946 (Kure-Hiroshima area)
- Limitations
- Commercial vendor transcription of the official NAVPERS 15,790 ship-participation table; the underlying document is official Navy but the row itself is a secondary rendering - the scanned NAVPERS PDF (104 pp, image-only) does not contain the ship-by-ship appendix, so the row could not be text-verified at primary level. Establishes presence in the Kure-Hiroshima sweep window, not day-by-day position or any exposure. NHHC hosts the awards manual proper at history.navy.mil.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-05
-
[7]NavalCoverMuseum (Naval Cover Museum wiki): YMS-337 designation history, 1943 cover, and milestone corroboration [other_primary]
- Locator
- navalcovermuseum.org/wiki/YMS_337 - designation-history table; USS_YMS-337_Covers_Page_1
- Finding type
- vessel_history
- Finding
- Postal-ephemera record corroborating the hull's documented timeline: 'YMS-1 Class Auxiliary Motor Minesweeper; Laid down November 27 1942 - Launched February 20 1943; Completed July 9 1943; USS YMS-337: Commissioned - Decommissioned (dates unknown); Struck from Naval Register August 15 1946; Transferred to War Shipping Administration February 28 1948; Fate unknown.' A 1943 naval cover exists (Covers Page 1), confirming the hull was in postal service in its commissioning year.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1948
- Population
- Crew of YMS-337 (1943)
- Limitations
- Museum wiki compilation, secondary; cover existence documents in-service status in 1943, nothing more. No asbestos content. Marks commissioned/decommissioned dates as unknown - consistent with 'Completed' wording in NavSource.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-06
-
[8]HyperWar (ibiblio): 'Ships of the U.S. Navy, 1940-1945' - YMS-337 listed in the YMS minesweeper register [other_primary]
- Locator
- ibiblio.org/hyperwar/USN/ships/ships-dm.html, YMS table, 'YMS-337 | 1942-5' row
- Finding type
- vessel_history
- Finding
- The transcribed Navy register lists 'YMS-337' among YMS motor minesweepers with service window '1942-5' - placing the hull in U.S. Navy service across the WWII window. No losses or name changes annotated for this hull in the register.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1945
- Population
- Crew of YMS-337 (1943-45)
- Limitations
- Register-level listing only - establishes wartime service era, not operations, locations, or material content. The '1942-5' span is the register's coarse coverage band, not a commissioning-to-disposal date pair. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-07
-
[9]Naval Marine Archive (The Canadian Collection): Seattle Shipbuilding, Seattle WA - yard history and build list including YMS 337 [other_primary]
- Locator
- navalmarinearchive.com/sbh/shipyards/small/seattle.html - yard narrative and hull table
- Finding type
- vessel_history
- Finding
- Builder corroboration and yard context: 'Seattle Shipbuilding & Drydocking Company, not to be confused with the big yard of a similar name which subsequently became Todd Seattle, was started by Fred Bianco in the 1930s and closed in the 1950s. The yard was at 2629 NW 54th Street, in Ballard.' Build list includes BYMS 21-24 and the YMS 334-341 sequence for US Navy, 278d minesweepers - 'YMS 337 | US Navy | Minesweeper | 278d | 9-Jul-43 | Struck 1946.' Notably the site is 'where Stabbert Shipyard is today' - consistent with the hull's 1950 registration to C.F. Stabbert.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1930s-1950s (yard); 1942-46 (hull)
- Population
- Seattle Shipbuilding & Drydocking construction trades (1942-43)
- Limitations
- Maritime-museum secondary compilation of yard records - not a primary register. '278d' (deadweight) and '9-Jul-43' completion agree with NavSource; the table supplies yard detail, no asbestos content. The Stabbert-site connection is the yard page's own note, offered as context for the later ownership link, not proof of it.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-08
-
[10]Era inference built on: NavSource/uboat.net specifications (wooden-hulled YMS-1-class hull; two GM 8-268A diesels, no steam plant); NavSource class index (YMS-1 wooden-hulled auxiliary motor minesweepers); GAO HRD-80-2 (see ev-uss-yms-337-09) [other_primary]
- Locator
- NavSource 11/19337.htm specifications; NavSource AMS/YMS index class note; GAO HRD-80-2
- Finding type
- asbestos_application
- Finding
- A wooden-hulled diesel-driven minesweeper completed July 1943 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a vessel of this type and period were engine exhaust lagging, machinery insulation, gaskets, valve packing, and electrical insulation. As a diesel boat she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply, and the wooden hull narrows thermal-insulation scope versus steel steamships; the confined-volume exposure dynamic of a small craft nonetheless applies.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1948
- Population
- Seattle Shipbuilding trades (1942-43); Navy crew (1943-46); merchant operators and any conversion trades (1948-forward)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or asbestos-related record was located for YMS-337. Names era-standard applications, not confirmed installed materials. No quantity. No manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-09
-
[11]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 (1942-43) and service era (1943-46).
- 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 - same standing defect as Batches 01 and 98); content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-10
-
[12]Batch-8967 search ledger (this record): NavSource; uboat.net; Nauticapedia; NARA Special List 44 (ACPL scan); NARA Catalog; NavalCoverMuseum; HyperWar; Naval Marine Archive; NAVPERS-derived awards transcription; CourtListener (see sl-uss-yms-337-06 for status); secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-337-01 through -13
- 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-337 was found in the public sources searched. The only 'asbestos aboard' material is law-firm marketing content asserting asbestos in Navy minesweepers generally (mesothelioma.com, mesotheliomavets.com, mesotheliomahelp.org, mesotheliomahope.com, mesotheliomaveterans.org, mesothelioma.net, asbestosclaims.law, mesotheliomaguide.com) - excluded by source policy. CourtListener status at research date is carried in the search ledger (sl-uss-yms-337-06).
- 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. The undigitized deck logs, any builder work packages, and the WSA/disposal records are open archival leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-337-11