Evidence
12 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-12).
-
[1]research packet 1080-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-95-yms95-pkt-1080-packet-md
-
[2]National Archives, Special List #44 - List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947, ship-number ordering [other_primary]
- Locator
- Special List #44 ship-number PDF, pp. 123-124 ('YMS-95 3/12/1942 6/30/1944' and 'YMS-95 8/1/1944 6/30/1945' - verified via pdftotext -layout); digitization status per https://www.archives.gov/research/military/logbooks/navy-online
- Finding type
- historical_record
- Finding
- NARA Special List 44 inventories TWO logbooks for YMS-95 (RG 24, Bureau of Naval Personnel records, National Archives at College Park): 3/12/1942 - 6/30/1944 and 8/1/1944 - 6/30/1945. Coverage opens on her completion/commissioning date (12 March 1942) and runs through the opening weeks of the Balikpapan minesweep - there is a one-month coverage gap (July 1944) between the two volumes. These are log-coverage dates, not asserted commissioning/decommissioning dates. YMS-95 does not appear on NARA's list of digitized deck logs in the National Archives Catalog (the digitized YMS entries are the hulls later named under the AMS/MSCO program); the logs are an undigitized primary record of her whole career.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1942-1945
- Population
- Crew and officers keeping the logs (1942-1945)
- Limitations
- Inventory listing only - establishes that deck logs exist and their date coverage, not their content. Log coverage is not proof of commissioning/decommissioning dates. The deck logs themselves are undigitized (not on the NARA online list); no page-level content reviewed this session. The July 1944 gap may be a missing volume or a split in shelving - not resolved.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-01
-
[3]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-95 - construction/milestone timeline, specifications, disposal [other_primary]
- Locator
- NavSource 11/19095.htm header block and specifications block (live, HTTP 200 verified 2026-10-05)
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: 'Laid down 6 June 1941 by Colberg Boat Works and Stephen Brothers, Stockton, CA; Launched 16 December 1941; Completed 12 March 1942; Struck from the Naval Register 19 June 1946; Transferred to the State Department, Foreign Liquidation in October 1947; Fate unknown.' Call sign Nan-William-King-How. Specifications: 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. No photograph of YMS-95 exists on the page. Page states: 'There is no DANFS History currently available for YMS-95.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Population
- Construction trades at Colberg/Stephens yards (1941-42); crew (1942-1946)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track NVR-style data. Contains no asbestos or material content. Specs differ slightly from the class index (see gaps).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-02
-
[4]uboat.net Allied Warships of WWII, USS YMS-95 (YMS-95) - build/milestone data and transcribed Operation Oboe II action-report entries naming this hull [other_primary]
- Locator
- uboat.net ship/9515 data block and 'Notable events' war-diary transcription (Operation Oboe II, 1 Jul 1945)
- Finding type
- vessel_history
- Finding
- uboat.net data block: built by Colberg Boat Works (Stockton, CA); ordered 1 April 1941; laid down 6 June 1941; launched 16 December 1941; commissioned 12 March 1942; stricken 19 June 1946. One operation names this hull: Operation Oboe II, the Allied landings at Balikpapan, Borneo - the last major amphibious assault of WWII. YMS-95, commanded by Lt.(jg) G.E. Newby, Jr., USNR, was one of 26 YMS minesweepers in the minesweeping task unit (TU 78.2.92 under Lt.Cdr. D.W. Blakeslee, USNR, part of TG 78.2.9). The 'A' echelon - including YMS-95 - departed Morotai 11 June 1945 ('Fox' day-20), reached the 100-fathom curve off Balikpapan 0642/15 June and began sweeping approach tracks for moored and acoustic mines. For sixteen days the YMS unit swept under repeated Japanese shore-battery fire; three sister sweepers were sunk by mines and four more damaged (YMS-50, YMS-39, YMS-365 sunk; YMS-368, YMS-335, YMS-47, YMS-314 damaged) before the 1 July landings. By 'Fox' day the unit had swept 15 Allied influence mines and 13 enemy moored contact mines.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1946; combat ops June-July 1945
- Population
- Crew under Lt.(jg) G.E. Newby, Jr. USNR (June-July 1945 operations)
- Limitations
- uboat.net is a specialist secondary database compiling official action-report/war-diary material - the task-group rosters and sweep log transcribe Navy operational reports, but this record relies on the compilation, not the underlying document images. The transcript attributes mine counts and casualties to the unit, not to YMS-95 individually; YMS-95 is never named as damaged or as having swept a specific mine. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-03
-
[5]Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953), Part II - Presidential Unit Citation ship list (HyperWar transcription) [other_primary]
- Locator
- NAVPERS 15,790 Part II, Presidential Unit Citation list, 'Task Unit 78.2.9 ... USS YMS-95 ... 15 Jun-1 Jul 45 - Balikpapan'
- Finding type
- historical_record
- Finding
- The official awards manual lists USS YMS-95 by name in Task Unit 78.2.9, which was awarded the PRESIDENTIAL UNIT CITATION for '15 Jun-1 Jul 45 - Balikpapan, Borneo, Netherlands East Indies.' The citation group: USS Sentry (AM-299), USS Scout (AM-296), USS Scuffle (AM-298), and YMS-9, -10, -39, -46, -47, -49, -50, -52, -53, -95, -196, -314, -315, -335, -336, -339, -364, -365, -366, -368, -392. YMS-95 was one of only 20 yard minesweepers in US Navy history to hold a Presidential Unit Citation.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 15 June - 1 July 1945
- Population
- The 20 YMS and 3 AM crews of TU 78.2.9 (June-July 1945)
- Limitations
- HyperWar is a respected transcription of the official NAVPERS 15,790 manual (Rev. 1953), not the scanned document itself - the text was grepped and quoted verbatim this session. A unit citation documents that the unit served with distinction; it says nothing about asbestos, materials, or individual crewmen.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-04
-
[6]Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953), Part IV - Area Campaign Medals, list of ships eligible for engagement stars (HyperWar transcription) [other_primary]
- Locator
- NAVPERS 15,790 Part IV, engagement-star eligibility list, 'YMS 95: 15 Jun 44 - 26 Oct 44 P19-2; 15 Jun 45 - 9 Jul 45 P37-3'
- Finding type
- historical_record
- Finding
- The official campaign-participation list credits YMS-95 with TWO Asiatic-Pacific engagements: 'YMS 95: 15 Jun 44 - 26 Oct 44 P19-2' (Consolidation of Northern Solomons, campaign window 27 Oct 43 - 15 Mar 45) and '15 Jun 45 - 9 Jul 45 P37-3' (Balikpapan operation, part of Borneo operations P37). This places the hull in the Bougainville/northern Solomons area through mid-1944 - during the July 1944 deck-log gap - then at Balikpapan for the June-July 1945 sweep.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1944-1945
- Population
- Crew (mid-1944 northern Solomons; June-July 1945 Balikpapan)
- Limitations
- HyperWar transcription of the official NAVPERS manual - ship-credit rows verified verbatim via grep this session. Campaign credit documents presence in the operation area on the credited dates; it does not document specific actions, damage, or materials aboard. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-05
-
[7]Shipbuilding History (Tim Colton), 'Colberg Boat Works, Stockton CA' yard vessel list + navalmarinearchive.com YMS builder table - builder's production record [other_primary]
- Locator
- shipbuildinghistory.com Colberg Boat Works table (YMS-95 row); navalmarinearchive.com/sbh/smallships/ym.html 'YMS 95 Stephens Bros./Colberg, Stockton CA, delivered 12-Mar-42, Struck 1946'; Stocktonia News 'Stockton at War, Part IV' (1 Aug 2022)
- Finding type
- vessel_history
- Finding
- The builder's production table lists YMS-95: US Navy minesweeper, 278 tons deadweight, 136 feet, delivered 12-Mar-42, disposition 'Struck 1946'. Colberg Boat Works was started in 1896 by three brothers and survived into the 1990s; the yard sat immediately east of Stephens Bros. at 848 West Fremont Street - Stocktonia News records that Stephens Brothers launched its first war vessel on 15 December 1941 and Colberg completed an identical ship the next day, and that 'the first two boats were the YMS 94 and YMS 95' - NavSource's 16 December 1941 launch date identifies YMS-95 as the Colberg hull. The two yards later merged as Stephens-Colberg Yards. Colberg also built sisters YMS-97, -99, -383 through -388 and later the Agile-class ocean minesweepers.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Population
- Colberg/Stephens construction trades (1941-42)
- Limitations
- Independent secondary yard register compiled from yard and government records. The 'Struck 1946' disposition agrees with NavSource/uboat's dated 19 June 1946 strike. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-06
-
[8]NavSource Online: Auxiliary Motor Minesweeper (YMS) / British Motor Minesweeper (BYMS) Index - class description and class-level specifications [other_primary]
- Locator
- NavSource 11/19idx.htm class narrative and 'Auxiliary Motor Minesweepers (YMS-1 to YMS-481)' specification block
- Finding type
- vessel_history
- Finding
- Class context for this hull: 'The wood-hulled YMS proved to be one of the U.S. Navy's more durable and versatile types' - 561 yard minesweepers were built at 35 U.S. yacht yards (12 East Coast, 19 West Coast, 4 Great Lakes) beginning with YMS-1, laid down 4 March 1941 at Henry B. Nevins, Inc., City Island, NY. YMS-95 belongs to the Mk I two-stack production group (YMS-1 through 134). Class-level specifications: length overall 136', extreme beam 24'6", displacement 320 tons, max draft 6'1", complement 33, one 3"/50 dual-purpose mount and two 20mm mounts, designed speed 12 knots, General Motors 8-268A diesel engines on two shafts, designed shaft horsepower 880. Surviving YMS were reclassified AMS and given bird names in 1947 - YMS-95, struck June 1946 and disposed overseas, never received one.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Population
- Class-wide construction and crew populations (1941-1969)
- Limitations
- Class-level description only - names the type's shared characteristics, not anything specific to hull 95 beyond her place in the two-stack Mk I group. Spec figures differ from the hull-page values (320t/33/12 kts here vs 270t/32/15 kts on the hull page; see gaps). No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-07
-
[9]Era inference built on: NavSource class index (wood-hulled YMS type, Mk I two-stack group); NavSource/uboat.net hull data (two GM 8-268A diesels, reduction gear, two shafts - no steam plant); GAO HRD-80-2 Navy-wide asbestos-use documentation (ev-09) [other_primary]
- Locator
- NavSource 11/19idx.htm class description; NavSource 11/19095.htm propulsion spec; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- A wood-hulled, diesel-driven minesweeper delivered in March 1942 sits inside the Navy's documented asbestos-use era. Era-standard applications on a small wooden diesel combatant of this type and period were diesel-exhaust and muffler lagging, engine-room thermal/acoustic insulation, machinery gaskets and valve packing, and electrical insulation. As a diesel craft she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply - and her wood hull and small machinery spaces imply a substantially smaller insulation footprint than a steam combatant.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Population
- Colberg/Stephens construction trades (1941-42); engine-room and maintenance crew (1942-1946); any yard/base trades during in-theater availabilities
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-95. Names era-standard applications, not confirmed installed materials. No quantity, no manufacturer attribution, no ship-proven presence. The small craft's reduced systems footprint makes the inference weaker than for steam-powered hulls of the same era.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-08
-
[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 (1941-42) and service era (1942-1946).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- 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 2026-10-05 - same standing defect as Batches 01/98/8941) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-09
-
[11]US EPA, CERCLA Site Information - COLBERG BOAT WORKS, 848 W Fremont Street, Stockton, CA (EPA ID CAN000906010) [other_primary]
- Locator
- EPA Superfund site profile CAN000906010 (live, fetched 2026-10-05)
- Finding type
- environmental_record
- Finding
- The hull's builder yard survives as an EPA-tracked CERCLA site: COLBERG BOAT WORKS at 848 W Fremont Street, Stockton - 'Not on the NPL; Other Cleanup Activity: State-Lead Cleanup.' The abandoned yard (fires in 2022-23 destroyed several buildings) is a legacy contaminated industrial site under state-lead cleanup.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-05
- Study period
- present
- Population
- Present-day site cleanup workers (contemporary)
- Limitations
- Documents the builder YARD's present-day environmental status only - the EPA profile does not itemize contaminants on the information page and establishes nothing about asbestos at the yard or aboard this hull. Context about the birthplace of the ship, not ship evidence.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-10
-
[12]Batch-9178 search ledger (this record): NARA Special List 44 and digitized-log list; NHHC DANFS (no entry exists); NavSource hull page and class index; uboat.net operations record; NAVPERS 15,790 Parts II and IV; shipbuildinghistory/navalmarinearchive yard tables; HyperWar data blocks; NVR; VA Board of Veterans' Appeals search; CourtListener; secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-95-01 through sl-uss-yms-95-13
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, VA/BVA decision, or docketed case naming YMS-95 was found in the public sources searched (see search_ledger). The only 'asbestos aboard' material for YMS-class hulls is law-firm marketing listicle content asserting asbestos without primary sourcing - excluded by source policy.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 2026-10-05
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - it is consistent with both genuinely light insulation fit and simple non-digitization of small-craft records. CourtListener partially blocked by fleet pacing this session (see ledger). Undigitized deck logs (RG 24) and builder records at NARA remain open leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-95-11