Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 1062-packet.md (3 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-388-yms388-pkt-1062-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-388 - construction timeline, specifications, commanding officers, disposal via Foreign Liquidation Commission (live navsource.net page verified 2026-10-04; navsource.org domain is dead) [other_primary]
- Locator
- NavSource 11/19388.htm header block, specifications block, commanding-officers table, DANFS-availability note
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: laid down 5 November 1942 by the Colberg Boat Work, Stockton, CA; launched 10 May 1943; completed 24 September 1943; struck from the Naval Register 19 June 1946; transferred to the State Department, Foreign Liquidation Commission 5 November 1947 and sold; fate unknown. 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, and two depth charge projectors; propulsion two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Commanding officers listed: LT R. E. Crowley, USNR (1945) and LT W. S. Ayers, USNR (1945). NavSource states explicitly: 'There is no DANFS history available for YMS-388' - the hull was never named and does not appear in the Dictionary of American Naval Fighting Ships.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Colberg Boat Works construction trades (1942-43); crew (1943-46); postwar occupation-service crew (1945-46)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - but it is the standard consolidated record for unnamed numbered hulls. 'Completed' is carried rather than 'commissioned'; uboat.net and armedconflicts.com give 24 September 1943 as the commissioning date and the SL44 logbook span begins that day, but no primary commissioning instrument was located. No decommissioning date is listed at all - only the 1946 strike and 1947 FLC disposal. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-01
-
[3]Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953), Part IV, section 16 - 'List of Ships and Units eligible for Engagement Stars' (official Department of the Navy awards manual; verified via the HyperWar/ibiblio transcription mirror, YMS 388 entry, 2026-10-04) [other_primary]
- Locator
- Awards-IV-16.html 'List of Ships and Units eligible for Engagement Stars,' YMS 388 rows (between YMS 387 and YMS 389)
- Finding type
- vessel_history
- Finding
- The official Navy awards manual lists YMS 388 as eligible for engagement stars/campaign participation as follows: P26-2 Occupation of Kwajalein and Majuro Atolls (31 Jan-8 Feb 1944); P34-1 Assault and occupation of Okinawa Gunto (25 Mar-30 Jun 1945); P35 3d Fleet operations against Japan (5-31 Jul 1945); and postwar minesweeping operations Pacific (P207): P207-3 Nagoya, Honshu area (7-25 Oct 1945); P207-18 Fukuoka, Kyushu-Korea area (6 Nov-26 Dec 1945); P207-20 Fusan, Kyushu-Korea area (13-28 Jan 1946); P207-28 Yangtze River Approaches (22 Feb-2 Mar 1946). This is a ship-specific wartime service record from an official Department of the Navy publication - YMS-388 served in the Marshall Islands (Kwajalein/Flintlock), at Okinawa, on Third Fleet operations against Japan, and in post-surrender minesweeping in Japanese, Korean, and Chinese approaches through early 1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-01-31 to 1946-03-02 (listed operations)
- Population
- YMS-388 crew (1944-46)
- Limitations
- Campaign-participation listing only - it establishes where the ship operated and when, not what materials were aboard. The HyperWar transcription is a faithful but unofficial mirror of NAVPERS 15,790; entry verified against the raw page table. Engagement-star eligibility documents participation, not battle damage or ship-specific events. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-02
-
[4]National Archives Special List 44, 'List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947' (Washington, DC, 1978), 'Ships with Symbol and Number Designations' section - logbook inventory for YMS-388 (verified against the page image in the ACPL Genealogy Center mirror of the NARA publication) [other_primary]
- Locator
- Special List 44 printed p. 521, 'Ships with Symbol and Number Designations' (YMS section); ACPL mirror http://genealogycenter.net/nara/speciallists/viewpage_narasl44.php?realpage=2790&display=553 (image narasl44/553.jpg)
- Finding type
- historical_record
- Finding
- NARA inventory documents four logbooks for USS YMS-388 in two spans: September 24, 1943 - February 28, 1945 and April 1 - June 30, 1945 (printed p. 521 of Special List 44, row 'YMS-388 | Sept. 24, 1943-Feb. 28, 1945 / Apr. 1-June 30, 1945 | 4'). Coverage begins on the completion/commissioning date and carries a one-month gap (March 1945); the first span ends during the run-up to the Okinawa operation and the second closes June 30, 1945, just before her Third Fleet operations against Japan (P35, July 1945) and her entire postwar minesweeping record.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-09-24 to 1945-06-30 (inventoried coverage, with March 1945 gap)
- Population
- YMS-388 crew (1943-45)
- Limitations
- Finding aid only: SL44 establishes that four logbooks exist and their date spans, not their contents - no page of the logs themselves was read. The one-month March 1945 gap and the absence of logs after 30 June 1945 mean the Okinawa-operation close-out, Third Fleet operations, all postwar Japan/Korea/China minesweeping, and the 1946 strike are outside the inventoried span. NARA hosts SL44 only as named-vessel web tables for public browsing; the numbered-vessel entry was verified via the ACPL Genealogy Center's page-image mirror of the published NARA document (batch source note 'PDF page 120' refers to the PDF pagination of the compiled SL44; the printed page is 521).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-03
-
[5]NavSource Online, Auxiliary Motor Minesweeper (YMS) class index - class construction program, subclass variants, 1947/1955 reclassification history (live navsource.net page verified 2026-10-04) [other_primary]
- Locator
- NavSource 11/19idx.htm 'Auxiliary Motor Minesweepers (YMS)' header narrative
- Finding type
- vessel_history
- Finding
- Class context: the YMS-1 type was a wood-hulled motor minesweeper designed by Henry B. Nevins, Inc., City Island, NY (first keel 4 March 1941); 561 built at 35 small yacht yards (12 East Coast, 19 West Coast, four Great Lakes) - small-yard wooden construction, the category Colberg Boat Works belonged to. YMS-1 through YMS-134 had two stacks; YMS-135 through YMS-445, 480, and 481 (which includes YMS-388) had one - the single-stack subclass. Surviving YMS hulls were reclassified AMS and given names in 1947 and received the MSC(O) symbol in 1955 - YMS-388 did not take part: she was struck 19 June 1946 and sold in 1947, before the February 1947 naming wave, and so remained a number-only hull for her entire Navy career.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1941-1969 (class span)
- Population
- YMS-class construction and operating populations (class context)
- Limitations
- Class-level background from a volunteer secondary compilation; establishes type, construction program, and reclassification pattern, not anything about this hull individually. The 'never named' conclusion rests on her June 1946 strike predating the 1947 reclassification plus the absence of any AMS/MSC entry for hull 388 in the NavSource index and Colton disposition table. No asbestos content - used to frame the construction context (wooden hull, diesel plant, small-yard build) that bounds era inference.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-04
-
[6]Shipbuilding History (Tim Colton), Colberg Boat Works Stockton CA yard list - builder identity, yard history, and construction-table row for YMS 388 (live page verified 2026-10-04; secondary compilation) [other_primary]
- Locator
- shipbuildinghistory.com Colberg yard page, yard-history paragraph and construction table row for YMS 388; shipbuildinghistory.com/smallships/ym.htm YMS 388 row
- Finding type
- vessel_history
- Finding
- Yard context for this hull's builder: Colberg Boat Works was started in 1896 by three brothers (Wilton, Jack and Gordon Colberg), operated at 848 West Fremont Street, Stockton, CA - immediately east of Stephens Bros. - and survived into the 1990s; the yard is documented by Colton as an EPA Superfund site. The yard's construction table carries 'YMS 388 | US Navy | Minesweeper | 278 | 136 | 24-Sep-43 | Sold 1947' - corroborating the builder identity and the 24 September 1943 delivery/completion date. Colberg's documented YMS production ran YMS-95, YMS-97, YMS-99, and YMS-383 through YMS-388 (the six-hull 383-388 block being this contract group). Colton's YMS disposition table (shipbuildinghistory.com/smallships/ym.htm) carries 'YMS 388 | Colberg Boat Works | Stockton CA | ... | 24-Sep-43 | Struck 1946'.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1943 (build window); 1946-47 (disposal)
- Population
- Colberg Boat Works construction trades (1941-45)
- Limitations
- Secondary compilation, used for builder corroboration only; the 278-ton figure is a build-tonnage convention that differs from NavSource's 270 t. displacement, and 'Sold 1947' vs 'Struck 1946' are both correct (different events). Colberg Boat Works is not an Atlas shipyards.json entry - no yard-level asbestos data linked. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-05
-
[7]uboat.net Allied Warships, USS YMS-388 (YMS-388) - order date, build/milestone dates, strike and sale (live page verified 2026-10-04; secondary compilation) [other_primary]
- Locator
- uboat.net/allies/warships/ship/9807.html data table
- Finding type
- vessel_history
- Finding
- uboat.net's warship record for this hull: ordered 11 April 1942; laid down 5 November 1942; launched 10 May 1943; commissioned 24 September 1943; stricken 19 June 1946; sold 5 November 1947 - corroborating NavSource on all shared dates and supplying the contract order date (11 April 1942) that NavSource does not carry. No commanding officers are listed on the uboat.net record.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- YMS-388 crew (1943-46)
- Limitations
- Secondary compilation (uboat.net Allied Warships), used as corroboration and for the order date; 'commissioned 24 Sep 1943' vs NavSource 'completed' is treated as the same milestone - SL44 logbooks beginning that day support in-commission status. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-06
-
[8]US EPA, Superfund (CERCLA) Site Information profile for COLBERG BOAT WORKS, EPA ID CAN000906010, 848 W Fremont Street / 401 N Stockton Street, Stockton, CA 95203 (live EPA cumulis page verified 2026-10-04) [other_primary]
- Locator
- EPA Superfund site profile, CAN000906010, 'Non-NPL Status: Other Cleanup Activity: State-Lead Cleanup'
- Finding type
- environmental_record
- Finding
- The builder yard of this hull is a tracked federal cleanup site: EPA's CERCLA profile lists Colberg Boat Works at 848 W Fremont Street / 401 N Stockton Street, Stockton, CA as 'Other Cleanup Activity: State-Lead Cleanup' (not on the NPL; EPA Region 09; not a federal facility) - documenting a hazardous-substance legacy at the construction site of this hull.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- contemporary (site profile current as of access)
- Population
- Colberg Boat Works site and neighbors (context)
- Limitations
- Yard-level site profile only - the profile page does not enumerate contaminants, and nothing on it ties contamination (if any is present) to asbestos specifically or to this hull. A shipyard cleanup record is site context for the builder, not evidence about the vessel; no asbestos content for YMS-388 should be inferred from it.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-07
-
[9]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (published Oct 18, 1979; publicly released Oct 22, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (Highlights section)
- Finding type
- gov_survey
- Finding
- GAO reviewed the Navy's efforts to protect workers from asbestos exposure at the Long Beach and Norfolk Naval Shipyards, including the use of asbestos in Navy ships, the cost of removing asbestos, and compensation programs for asbestos-related disabilities - documenting that asbestos insulation was used aboard Navy ships across the era that covers this hull's construction (1942-43) and service (1943-46). The Navy's 1975 policy removed/replaced only damaged insulation or insulation requiring removal for repairs; in 1979 it was modified to selectively replace asbestos insulation in high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1975-1979 (policy window); covers era of this hull's construction and service
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull - YMS-388 is not named, and the surveyed yards (Long Beach, Norfolk NSY) are not documented as having performed work on this vessel. Content verified via firecrawl extraction of the live product page (gao.gov blocks automated direct fetches, HTTP 403).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-08
-
[10]Era inference built on: NavSource specifications (two GM 8-268A diesels, reduction gear, two shafts - diesel plant, no steam); NavSource YMS class index (wood-hulled type built at 35 small yacht yards); GAO HRD-80-2 (see ev-08) [other_primary]
- Locator
- NavSource specifications block (propulsion); NavSource YMS class index (wood hull, yacht-yard construction); GAO HRD-80-2 (era documentation)
- Finding type
- asbestos_application
- Finding
- A wood-hulled, diesel-powered motor minesweeper built 1942-43 at a small California boat-yard type facility sits inside the Navy's documented asbestos-use era; era-standard applications aboard a small diesel craft of this type and period were engine and exhaust lagging, gaskets in fuel/oil/exhaust flanges, valve packing, and electrical insulation. As a diesel vessel she carried no boilers or steam system - the boiler/turbine lagging pathway of steam ships does not apply, and inferred scope is materially smaller than for steam vessels of the era.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Colberg construction trades (1942-43); crew (1943-46); FLC/purchaser scrapping or merchant crews (1947 onward)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or fitting-out record located for YMS-388. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull. Wooden-hull construction bounds but does not eliminate the inference (auxiliary systems, wiring, and flanged joints still used gaskets/packing/insulation of the era).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-09
-
[11]Batch-9023 search ledger (this record): NavSource vessel and class pages (navsource.net); NAVPERS 15,790 engagement-star list via HyperWar; NARA Special List 44 via ACPL scan mirror; shipbuildinghistory Colberg yard list and YMS disposition table; uboat.net warship record; EPA CERCLA profile CAN000906010; GAO HRD-80-2 product page; NARA catalog API probe; CourtListener (fleet-paced, unsearched); secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-388-01 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-388 was found in the public sources searched. CAVEAT: CourtListener could not be queried this session - the authenticated helper was refused on every attempt (fleet-wide pacing budget momentarily spent, ~58/hr shared across sessions) - logged as blocked in search_ledger, not as a negative result. The only 'asbestos aboard' material surfaced in secondary sweeps is law-firm/aggregator 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 - and the litigation repository search is a genuine open gap (fleet-paced, not run). Deck logs (SL44: four logbooks, 1943-45), Colberg work packages, and FLC sale/disposal records are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-388-10