Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
-
[1]research packet 1045-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-270-yms270-pkt-1045-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-270 (archives/11/19270.htm) - construction timeline, specifications, commanding officers, merchant disposition (page verified live 2026-10-04; navsource.org is dead, .net domain used) [other_primary]
- Locator
- NavSource 11/19270.htm header block, specifications block, commanding-officer table
- Finding type
- vessel_history
- Finding
- YMS-1 class auxiliary motor minesweeper: laid down 11 May 1942 by Bellingham Marine Railway and Boat Building Co., Bellingham, WA; launched 7 September 1942; completed and commissioned USS YMS-270, 25 March 1943, assigned to the Pacific Fleet; participated in the invasion of Guam in July 1944; decommissioned 1 May 1946; transferred to the War Shipping Administration March 1947; struck from the Naval Register 10 June 1947; registered 1949 to Raymond Lendten of Wauna, OR as tugboat Pauline out of Astoria, OR; registered 1954 to Beaufort Fisheries, Inc. of Beaufort, NC as fishing boat Pauline; out of documentation 1984; fate unknown. Specifications: 270 t.; 136' x 24'6" x 8'; 15 kts.; complement 32; one 3"/50 dual-purpose mount, two 20mm mounts, two depth-charge projectors; two 880 bhp General Motors 8-268A diesel engines, single-reduction gear, two shafts. Commanding officers: LT Douglas W. Marden, USNR (26 March 1943); LTJG I. E. Campbell, USNR (1945).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1984
- Population
- Bellingham yard construction trades (1942-43); wartime crew (1943-46); merchant crews as Pauline (1949-84)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its milestone dates generally track NVR/DANFS-class records. Contains no asbestos content. 'Fate unknown' means documentary trail ends at the 1984 documentation lapse, not that loss/scrapping is established.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-01
-
[3]National Archives Special List 44: List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 (Bradley, Kurtz, et al., comps., 1978) - YMS-270 logbook holdings entry, p. 517 of the Ships with Symbol and Number Designations section (verified via ACPL Genealogy Center scan mirror, display page 549) [other_primary]
- Locator
- Special List 44, p. 517 (YMS block); ACPL mirror scan display 549
- Finding type
- historical_record
- Finding
- NARA Special List 44 lists six deck logbooks for YMS-270 spanning Mar. 25, 1943-June 30, 1945 - i.e., from commissioning through mid-1945, covering her Treasury Islands and Guam operations.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1945
- Population
- Wartime crew, 1943-45 (deck-log coverage window)
- Limitations
- A finding aid, not a record extract: it establishes that six logbooks exist at NARA for this hull and their date span, not their contents - the logs were not digitized and were not read for this record (see search_ledger). Log-coverage dates are not commissioning/decommissioning attestations. Page number cited is the printed book page (517); PDF pagination differs.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-02
-
[4]Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953), Part IV - List of Ships and Units Eligible for Engagement Stars (NHHC-hosted official publication) [other_primary]
- Locator
- NAVPERS 15,790 (Rev. 1953) Pt. IV, YMS vessel list - 'YMS 270' entry; engagement definitions at P24 and P29
- Finding type
- historical_record
- Finding
- The official awards manual credits YMS-270 with two World War II engagement stars: P24-2 'Treasury Island landing,' 27 Oct - 6 Nov 1943 (within the Treasury-Bougainville operation, P24); and P29-7 'Capture and occupation of Guam,' 21 Jul - 15 Aug 1944 (within the Marianas operation, P29, engagement window 12 Jul - 15 Aug 1944).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1944
- Population
- Wartime crew during credited operations (1943-44)
- Limitations
- Establishes officially credited participation windows only. The ONI combat narrative 'Solomon Islands Campaign XII' names YMS-96, YMS-197, YMS-238, YMS-243, and YMS-260 in the Treasury-area task organization and does not name YMS-270 - the awards manual, not the narrative, is the authority for the star credit. Star credit documents presence in an operational area, not any material condition aboard. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-03
-
[5]Major O. Robert Lodge, USMCR, 'The Recapture of Guam' (Historical Branch, G-3 Division, HQMC, 1954), Appendix V: United States Ships Participating in the Guam Operation (HyperWar transcription of the official USMC monograph) [other_primary]
- Locator
- USMC-M-Guam-V.html, Appendix V, 'MINE VESSELS' table
- Finding type
- historical_record
- Finding
- YMS-270 appears in Appendix V's 'MINE VESSELS' section of the order of battle of United States ships participating in the Guam operation, alongside AM/DMS/CM minesweepers and 25 other YMS hulls.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944
- Population
- Wartime crew, Guam operation (Jul-Aug 1944)
- Limitations
- An order-of-battle listing establishes presence in the operation, not sweep results, damage, or material conditions aboard. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-04
-
[6]Naval History and Heritage Command photographic catalog, NH 84974 - 'USS YMS-270' (page verified live 2026-10-04) [museum_official]
- Locator
- NHHC NH-series catalog page NH 84974
- Finding type
- historical_record
- Finding
- NHHC holds cataloged photograph NH 84974 of this hull: 'USS YMS-270. In San Francisco Bay, circa 1945. Note: Insignia on stack.' (Courtesy of Donald McPherson, 1976). Places the ship in San Francisco Bay in the late-war/early post-war period.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- circa 1945
- Limitations
- A cataloged photograph establishes location and visual configuration (single stack with insignia, consistent with the YMS-135-445 one-stack series), not machinery or material content. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-05
-
[7]ShipbuildingHistory (T. Colton), 'Bellingham Marine, Bellingham WA' yard output table and yard history [other_primary]
- Locator
- shipbuildinghistory.njscuba.net/us-comm-small/bellingham/ - YMS-270 row, O/N 253153
- Finding type
- historical_record
- Finding
- The yard's output table lists this hull as U.S. Navy minesweeper YMS-270, official number 253153, 278 tons, 136 ft, delivered 25 March 1943, 'sold 1946 as Pauline.' Yard lineage documented: Bellingham Marine Railway Co. became Bellingham Marine Railway and Boatbuilding Co. in 1921, merged with Bellingham Iron Works into Bellingham Shipyards in 1941, renamed Bellingham Marine after the war, closed 1963.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1943 (build); 1946-1984 (merchant)
- Population
- Bellingham yard construction trades (1942-43)
- Limitations
- Reputable secondary compilation of merchant/official-number records; 'sold 1946' conflicts slightly with NavSource's 'transferred to WSA March 1947, registered 1949' (sale/disposal processing spanned 1946-49; see gaps). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-06
-
[8]NHHC-hosted 'United States Pacific Fleet Organization, 1 May 1945' (official wartime organization listing) [other_primary]
- Locator
- us-pacific-fleet-organization-1may1945.html, Commander Minecraft Pacific Fleet YMS pool - 'YMS 270' row
- Finding type
- vessel_history
- Finding
- The official 1 May 1945 Pacific Fleet organization lists YMS-270 under Commander Minecraft, Pacific Fleet (R. Adm. A. Sharp), commanded by Lt. (jg) I. E. Campbell, USNR - corroborating NavSource's commanding-officer table and placing the hull in the Pacific minecraft establishment in the war's final year.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945
- Population
- Wartime crew (May 1945)
- Limitations
- Organizational listing only: establishes command assignment and CO as of 1 May 1945, not location, activity, or material condition. Footnote codes beside individual YMS entries (e.g., '94' beside YMS-270) are not fully resolved in the web rendering. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-07
-
[9]NavSource Auxiliary Motor Minesweeper (YMS) index - class characteristics (wood hull, 481 ships of the type, yacht-yard construction, one-stack series YMS-135 through YMS-445/480/481) + ship's own spec block (diesel plant, no steam) [other_primary]
- Locator
- NavSource 11/19idx.htm class narrative; YMS-270 spec block (11/19270.htm)
- Finding type
- asbestos_application
- Finding
- Era inference for this hull: a wood-hulled diesel-powered YMS-1-class motor minesweeper completed March 1943 falls inside the Navy's documented asbestos-use era. Era-typical applications aboard a small diesel combatant of this type: lagging on diesel exhaust runs and silencers, flange gaskets and valve packing in cooling/fuel/lube systems, asbestos-containing electrical cable insulation and switchboard panel board, and brake linings on the anchor windlass and sweep winches. As a wooden diesel craft she carried no boilers or steam distribution - the boiler/steam-line lagging pathway of steam vessels does not apply.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1984
- Population
- Bellingham construction trades (1942-43); wartime crew (1943-46); merchant crews (1949-84)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-270. Names era-standard applications for the type, not confirmed installed materials. No quantity, no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-08
-
[10]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2
- 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 Navy service era (1942-47).
- 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 this session (gao.gov blocks automated fetch); content via product-page description - same standing access defect as BATCH-01/98.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-09
-
[11]Batch-8900 search ledger (this record): NavSource vessel page + YMS class index; NARA Special List 44 (ACPL mirror); NAVPERS 15,790 Pt. IV (NHHC); USMC Guam monograph App. V (HyperWar); NHHC photo catalog; shipbuildinghistory; uboat.net; NARA online deck-log catalog; secondary web sweep; CourtListener (see ledger for status) [other_primary]
- Locator
- search_ledger rows sl-uss-yms-270-01 through -12
- 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-270 was found in the public sources searched (see search_ledger). Secondary web sweeps surfaced no asbestos litigation naming this hull and no ship-specific asbestos content whatsoever - unsurprising for a numbered-only wooden minesweeper with a forty-year thin documentary trail.
- 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 - era inference remains reasonable but unproven for this hull. Six NARA deck logbooks (1943-45) are an unopened archival lead; the merchant-vessel 'Pauline' documentation file (O/N 253153) is another unsearched lead. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-270-10