Evidence
12 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-12).
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[1]research packet 1044-packet.md (3 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-269-yms269-pkt-1044-packet-md
-
[2]Ships' Data, U.S. Naval Vessels, Vol. III (Auxiliary, District Craft and Unclassified Vessels), NAVSHIPS 250-012, 15 April 1945, p. 539 'MOTOR MINE SWEEPERS (YMS)' - official Navy register (Google-scan via shipscribe.com) [other_primary]
- Locator
- NAVSHIPS 250-012 Vol III, p. 539, YMS269 row (PDF p. 558 of SDB1945v3.pdf)
- Finding type
- vessel_history
- Finding
- Official April 1945 Navy register row for this hull: 'YMS269' (superscript note 1 = 'Wood construction'), length 136 ft 0 in, breadth 24 ft 6 in, shaft horsepower 1,000, builder 'Bellingham Marine Ry. & B. B. Co., Bellingham, Wash.', remarks 'Diesel reduction.' (ditto chain). Listed as an in-service vessel of the YMS type as of 15 April 1945 - confirms wooden construction, diesel machinery, and builder directly from a contemporaneous Navy publication.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1945 (register effective 15 Apr 1945)
- Population
- Bellingham Marine construction trades (1942-43); crew (1943-forward)
- Limitations
- Establishes construction identity and machinery type only - no asbestos or material content stated. The register gives no laid/launched dates for this hull (those columns not printed in this section); commissioning and milestone dates come from other rows. Scanned page image OCR-read; columnar layout verified against the rendered page.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-01
-
[3]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-269 page (11/19269) - construction milestones, specifications, disposal [other_primary]
- Locator
- NavSource 11/19269.htm header block, spec block, 'There is no DANFS History' note
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: laid down 15 April 1942 by the Bellingham Marine Railway and Boat Building Co., Bellingham, WA; launched 7 September 1942; completed 23 February 1943; struck from the Naval Register 10 June 1947; 'Destroyed in June 1948.' Call sign Nan-Fox-Peter-Able. 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.' Page explicitly notes 'There is no DANFS History currently available for YMS-269.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1948
- Population
- Bellingham Marine construction trades (1942-43); crew (1943-47); disposal personnel (1947-48)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track NVR/DANFS but the strike date conflicts with shipbuildinghistory's 'struck 1946' (see gaps). 'Destroyed in June 1948' carries no place or mechanism. The '880bhp' per-engine figure conflicts with NAVSHIPS 250-012's 1,000 total shaft horsepower and class-standard 440 bhp per 8-268A - flagged in gaps. No asbestos content. Page verified live 2026-10-04.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-02
-
[4]uboat.net Allied Warships of WWII, USS YMS-269 (YMS-269) vessel page and Operation Oboe II (Balikpapan) event transcription, sourced to the COMTASKGROUP 78.2 and 78.2.9 action reports [other_primary]
- Locator
- uboat.net ship/9689.html - vessel data block; 'Notable events' -> 1 Jul 1945 Oboe II narrative, TG 78.2.9/TU 72.2.92 order of battle and 30 June 1945 chronology
- Finding type
- vessel_history
- Finding
- uboat.net record for this hull: ordered 14 March 1942; laid down 15 April 1942; launched 7 September 1942; commissioned 23 February 1943; stricken 10 June 1947; built by Bellingham Marine Railway and Boatbuilding Co. (Bellingham, WA). Documented wartime service: in the Balikpapan operation (Oboe II) she was part of the Minesweeping Unit TG 78.2.9, in Task Unit 72.2.92 under Lt.Cdr. D.W. Blakeslee, USNR, with her own commanding officer listed as Lt. P.J. Ganey, USNR; the transcribed action report records 'At 1300I/30, USS YMS-65 and USS YMS-269 reported for duty with TU 78.2.9' on 30 June 1945, the day before the 1 July 1945 'Fox' day landings at Balikpapan Bay, Borneo - the operation whose minesweepers cleared channels of Allied influence mines and enemy mines ahead of the landing force. The same transcription records sister sweeper USS YMS-314 exploding an Allied influence mine about 100 feet astern and sustaining minor damage at 0945I/30 on 30 June.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1947 (milestone data); Jun-Jul 1945 (Oboe II operation)
- Population
- Crew under Lt. P.J. Ganey, USNR (Jun-Jul 1945); TU 78.2.9 minesweeping force
- Limitations
- Secondary compiled database grounded in the CTG 78.2 / 78.2.9 action reports (cited as its sources); ship-level timeline entries are consistent with NavSource/NAVSHIPS. 'Commissioned 23 Feb 1943' is uboat's wording - NavSource says 'Completed' the same date (see gaps). Presence in TU 72.2.92 establishes participation in the Balikpapan sweep but not the specific mines swept by this hull. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-03
-
[5]National Archives, 'Special List #44, by Ship Numbers' (deck-log custody inventory PDF; the Special List 44 series of List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947), PDF page 117 [other_primary]
- Locator
- sl-44-ship-number.pdf, PDF page 117 (YMS block), rows 'YMS-269 2/23/1943 6/30/1944' and 'YMS-269 4/1/1945 12/31/1945'
- Finding type
- historical_record
- Finding
- NARA custody listing records TWO deck-log windows for YMS-269: 2/23/1943-6/30/1944 and 4/1/1945-12/31/1945. The first window begins at commissioning (23 Feb 1943); the second covers the Balikpapan operation period (Jun-Jul 1945) through end-1945. The Jul 1944-Mar 1945 interval - which includes her documented Northern Solomons operations - is NOT in the custody listing (gap window).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1945 (two coverage windows)
- Population
- Crew of record during log windows (Feb 1943-Jun 1944; Apr-Dec 1945)
- Limitations
- Special List 44 is a custody inventory, not digitization status: it proves NARA holds the logs, not that they are online (the NARA deck-log catalog pages list only named vessels; YMS-269's logs do not appear among digitized file units located this session). The 7/1/1944-3/31/1945 interval is absent from the listing - whether logs for that window were lost, destroyed, or held elsewhere is undetermined. Deck logs contain position/operations/weather data, not material content - no asbestos information expected.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-04
-
[6]National Archives Catalog, NAID 193013096, 'YMS-269, 2/23/43-9/30/44' - file unit, RG 24 Records of the Bureau of Naval Personnel, Muster Rolls of U.S. Navy Ships series; microfilm Roll 9066; digitized via Ancestry partnership (unrestricted) [other_primary]
- Locator
- NAID 193013096 (catalog.archives.gov/id/193013096); media occurrence Roll 9066
- Finding type
- historical_record
- Finding
- NARA holds and has digitized the muster rolls for this hull covering 23 Feb 1943 - 30 Sep 1944 (commissioning through fall 1944). Muster rolls document the crew population aboard by name and rating for each reporting period - the primary population record for any crew-level exposure analysis. Physical copy: Microfilm Roll 9066, National Archives at College Park.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1944
- Population
- All hands aboard YMS-269, Feb 1943-Sep 1944 (name-level)
- Limitations
- Muster rolls are personnel rosters - they establish who served aboard and when, not materials aboard or individual exposure. Coverage ends 30 Sep 1944; muster rolls for Oct 1944-forward were not located in the catalog this session (further rolls may exist under different file units). Access via Ancestry collection 1143 or NARA College Park textual reference.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-05
-
[7]National Archives Catalog full-text search, 'YMS-269' - 168 record hits, predominantly World War II war diaries (NARA II, microfilm-rolled file units) whose transcribed text mentions this hull [other_primary]
- Locator
- catalog.archives.gov proxy search q="YMS-269", 168 hits (top-ranked file units listed)
- Finding type
- historical_record
- Finding
- Catalog search hits trace a track consistent with her documented service: Destroyer Base San Diego war diary (Jul 1943); NAS Palmyra (Aug 1943); Naval Station Bora Bora (Sep, Oct, Nov 1943); USS Varuna / USS Whitney / USS Stratford / USS Rio Grande war diaries (Feb-Apr 1944); COM NAV BASES Forward Area (Apr 1944); Naval Advance Base Treasury (Jun 1944); Naval Advance Base Torokina and COM NAV FAC Northern Solomons, Torokina (Jan-Feb 1945); COMCORTDIV 71 (Mar 1945); USS Maui (ARG-8) (Jul, Aug 1945); USS Beaverhead (Oct 1945). Pattern: San Diego -> South Pacific transit (Palmyra, Bora Bora) -> Solomons advanced bases (Treasury, Torokina) -> Philippine-area tenders -> post-surrender operations.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1945
- Population
- Crew at listed stations (1943-45)
- Limitations
- Search-result-level evidence: the catalog's OCR text matched 'YMS-269' inside these diaries, but individual diary pages were not read this session (Fold3-hosted scans). Titles alone do not establish what operations or events involving YMS-269 each diary records - treat as leads for the service narrative, not as documented movements.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-06
-
[8]Secondary transcription of the Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953) battle-star list, YMS-269 entry (commercial host; underlying source is the official awards manual) [other_primary]
- Locator
- officialmilitaryribbons.com, 'YMS 207 to YMS 361' table, YMS 269 entry
- Finding type
- vessel_history
- Finding
- Per the NAVPERS 15,790-derived listing, YMS-269 earned two Asiatic-Pacific campaign credits: P19-2, Consolidation of Northern Solomons, 15 Jun 1944 - 26 Oct 1944; and P37-3, Balikpapan operation, 25 Jun 1945 - 1 Jul 1945. The Balikpapan credit is consistent with the independently documented CTG 78.2.9 action-report record (see ev-03).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-1945
- Population
- Crew during credited campaign windows
- Limitations
- Host is a commercial ribbon retailer transcribing NAVPERS 15,790 (Rev. 1953); cited as a transcription of the official manual, not as authority itself. The Northern Solomons credit window (Jun-Oct 1944) falls inside the deck-log custody gap (see ev-04), so corroborating deck-log evidence for that campaign is not in the SL44 listing. Verification against the printed NAVPERS volume or NHHC awards files remains open.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-07
-
[9]Shipbuilding History (shipbuildinghistory.njscuba.net), 'Bellingham Marine, Bellingham WA' yard page - builder corporate history and hull-level delivery table [other_primary]
- Locator
- shipbuildinghistory Bellingham yard page - history paragraph + hull table, YMS-269 row
- Finding type
- vessel_history
- Finding
- Builder identity and name history: 'Bellingham Marine Railway Co. was a boat repair business going back to the early years of the 20th century: it became Bellingham Marine Railway and Boatbuilding Co. in 1921... In 1941, it became Bellingham Shipyards when it merged with Bellingham Iron Works, and after the war it was renamed Bellingham Marine. It closed in 1963.' Yard table lists YMS-269 (US Navy minesweeper, 278 tons, 136 ft, delivered 23 Feb 1943, noted 'struck 1946'). The hull sits inside the yard's wartime YMS production run alongside YMS-270 through YMS-274 and BYMS hulls.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Bellingham yard workforce (1942-43)
- Limitations
- Secondary shipyard-history compilation. The 'struck 1946' table note conflicts with the Naval Register strike of 10 June 1947 reported by NavSource/uboat - carried as a discrepancy in gaps. Corporate-name nuance: sources use both 'Bellingham Marine Railway and Boat Building Co.' (NavSource, NAVSHIPS) and 'Bellingham Shipyards' (post-1941 corporate name). Direct fetches of this site returned HTTP 500/406 from this network; content obtained via Firecrawl render - flagged as an access caveat.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-08
-
[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 (1942-43) and service era (1943-47).
- 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) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-09
-
[11]Era inference built on: NAVSHIPS 250-012 register data (wood construction, diesel machinery, 1,000 shp); NavSource specification block (GM 8-268A diesels, reduction gear, two shafts); GAO HRD-80-2 Navy-wide asbestos-use documentation (see ev-09); YMS-1 class design parameters (35 small yards, wooden hulls, diesel propulsion) [other_primary]
- Locator
- NAVSHIPS 250-012 p. 539; NavSource spec block; GAO HRD-80-2
- Finding type
- asbestos_application
- Finding
- A diesel-powered, wooden-hulled motor minesweeper built 1942-43 sits inside the Navy's documented asbestos-use era; era-standard applications aboard diesel small craft of this type were engine and exhaust lagging, gaskets, valve packing, and electrical insulation within the confined machinery space. As a wood-hulled diesel craft she carried no boilers, turbines, or steam piping - the boiler/turbine lagging pathway dominant on steam warships does not apply, and the asbestos inventory of a 136-ft wooden minesweeper was materially smaller than that of steel steam vessels of the era.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1948
- Population
- Bellingham Marine construction trades (1942-43); crew (1943-47); disposal personnel (1947-48)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, construction specification, or work package located for YMS-269. Names era-standard applications for diesel small craft, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-10
-
[12]Batch-8898 search ledger (this record): NAVSHIPS 250-012 register; NavSource; uboat.net (CTG 78.2.9 action-report transcription); NARA SL44 ship-number list; NARA catalog (muster rolls, war-diary hits); shipbuildinghistory; CourtListener API v4 (7 authenticated queries); secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-269-yms269-01 through -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-269 was found in the public sources searched. CourtListener API v4 swept this session: 'USS YMS-269' opinion search returned zero; the three other base queries overflowed with loose-match noise but zero returned record contained the hull term, and the three asbestos-qualified variants likewise returned no record containing 'YMS-269' - no qualifying case. Secondary web sweeps surfaced no qualifying case and no marketing listicle specifically naming this hull. Asbestos content for this hull is era inference only.
- 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 counts (663/3,838/93/401) reflect the API's loose term matching on a numeric hull string - noise, not name collisions; every returned record was individually checked for the literal term and none contained it. Deck logs (SL44 windows), Bellingham yard records, and 1947-48 disposal documentation are undigitized or unlocated leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-269-yms269-11