Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
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[1]research packet 1075-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED (thin sourcing disclosed)
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Limitations
- qualifier: VERIFIED (thin sourcing disclosed)
- Evidence ID
- uss-yms-67-yms67-pkt-1075-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-67 - construction, disposal, specs, call sign (live page verified 2026-10-05) [other_primary]
- Locator
- NavSource 11/19067.htm header block and specifications block
- Finding type
- vessel_history
- Finding
- Documented for this hull: YMS-1 Class Auxiliary Motor Minesweeper; laid down 22 July 1941 by the Weaver Brothers Shipyards, Orange, TX; launched 17 February 1942; completed 15 July 1942; 'Transferred to the State Department, Foreign Liquidation Commission 27 May 1946 and sold'; struck from the Naval Register 3 July 1946; 'Fate unknown'; call sign Nan - Item - George - Yoke. Spec block: displacement 270 t.; length 136'; beam 24'6"; draft 8'; speed 15 kts.; complement 32; armament one 3"/50 dual purpose gun 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. Page states explicitly: 'There is no DANFS history available for YMS-67' and no image of the hull is held.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1946
- Population
- Weaver yard construction trades (1941-42); crew (1942-46)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its milestone dates generally track official records and here agree with uboat.net and the Weaver yard table. 'Completed' wording used for this service craft rather than 'commissioned' (uboat.net prints commissioned) - the vessel may have been 'in service' rather than 'in commission'; NARA deck-log coverage begins the same date. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-01
-
[3]uboat.net Allied Warships, USS YMS-67 (YMS-67), ship 9487 - milestones table (live page verified 2026-10-05) [other_primary]
- Locator
- uboat.net ship page 9487, milestones table
- Finding type
- vessel_history
- Finding
- uboat.net documents for this hull: ordered 1 April 1941; built by Weaver Shipyards (Orange, Texas); laid down 22 July 1941; launched 17 February 1942; commissioned 15 July 1942; stricken 3 July 1946. The commands table is empty ('We don't have any commands listed') and no notable-events entries are recorded for this hull; the 'End service' field is blank.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1946
- Limitations
- uboat.net is a curated secondary database (Gudmundur Helgason) - milestone data generally tracks official records; the empty commands and events tables mean this page corroborates milestones only, not operations. 'End service' blank - no decommissioning date given; only uboat.net supplies the ordered date (1 Apr 1941), unverified against a primary contract record. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-02
-
[4]National Archives Special List #44 - List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 (ship-number ordering), PDF page 123 [other_primary]
- Locator
- sl-44-ship-number.pdf p. 123, entry 'YMS-67 7/15/1942 - 8/31/1945'; RG 24 deck-log series per archives.gov logbook pages; catalog.archives.gov search-within 594258 q="YMS-67"
- Finding type
- historical_record
- Finding
- NARA's official inventory lists one deck-log entry for YMS-67: coverage 7/15/1942 - 8/31/1945 - spanning her entire career from completion through V-J Day, including her (otherwise undocumented) wartime employment. The logs are held at NARA (Record Group 24 deck-log series).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1942-07-15 to 1945-08-31
- Population
- Crew (1942-1945); names and daily movements inside the undigitized log
- Limitations
- Inventory entry only - the logbook itself is not digitized: the National Archives Catalog search-within series 594258 (Logbooks of U.S. Navy Ships and Stations) returns no YMS-67 file units (the four fuzzy matches returned are Curlew AM-69 and Mango AN-24 records - name collisions, checked 2026-10-05), so its contents are an unexamined primary source. Coverage ends 8/31/1945: the inventoried volume does not cover her postwar Japanese-waters/Yangtze sweeping, her May 1946 transfer to the Foreign Liquidation Commission, or her striking (3 Jul 1946); later logbooks presumably exist but are not listed in SL-44. The coverage dates document log spans, not asserted commissioning or decommissioning dates. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-03
-
[5]Secondary reproduction of U.S. Navy WWII campaign/battle-star data (officialmilitaryribbons.com, 'Navy Ship World War 2 Campaign Battle Stars, YMS 1 to YMS 200'; site attributes data to Navy and Marine Corps Awards Manual NAVPERS 15,790 Rev. 1953) [other_primary]
- Locator
- Page block 'YMS 67:' - two credit rows (P207-9 Kobe 28 Nov 45 - 2 Mar 46; P207-28 Yangtze River Approaches 22 Feb 46 - 2 Mar 46)
- Finding type
- historical_record
- Finding
- A secondary compilation of Navy WWII campaign-credit data lists two operation credits for YMS-67, both post-surrender minesweeping: P207-9 Kobe (Honshu Area), 28 November 1945 - 2 March 1946, and P207-28 Yangtze River Approaches, 22 February - 2 March 1946. No wartime (pre-surrender) campaign credits are listed - consistent with the absence of this hull from the Cressman official chronology. Places the vessel in Japanese home-island waters and the Yangtze approaches during the postwar mine-clearance period.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1945-11-28 to 1946-03-02
- Population
- Crew (Nov 1945 - Mar 1946 postwar operations)
- Limitations
- Commercial vendor page reproducing official Navy campaign-credit data - not itself an authoritative source; unverified against the NAVPERS 15,790 source document. Operation windows credit the vessel with presence in the operating area during the stated spans; day-by-day tasking would come from the undigitized deck logs and any later logbooks. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-04
-
[6]shipbuildinghistory.com (Tim Colton yard compilation), Weaver Shipyard Orange TX yard table and yard history (live page verified 2026-10-05; same content mirrored at navalmarinearchive.com) [other_primary]
- Locator
- weaver.htm yard table row 'YMS 67 ... 15-Jul-42 ... Struck 1946'; yard-history narrative paragraph
- Finding type
- vessel_history
- Finding
- Builder corroboration: the Weaver Shipyard (Orange TX) yard table lists 'YMS 67 | US Navy | Minesweeper | 278 | delivered 15-Jul-42 | Struck 1946' - matching NavSource and uboat.net on builder, delivery/completion date, and striking year. The table lists the yard's 26-YMS block: YMS-66 through YMS-75, YMS-247 through YMS-258, and YMS-371 through YMS-374, plus subchasers SC-666 and SC-667. The yard history describes the yard founded 1897 as Joseph Weaver and Son (barges for the Galveston Navigation District), renamed Weaver Shipyards in 1941, and awarded contracts 'to construct wooden mine sweepers and sub chasers' in 1941 and 1942.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1942 (build)
- Population
- Weaver Orange construction trades (1941-42)
- Limitations
- Secondary yard compilation - valuable for build data, fallible on dispositions (carries only 'struck 1946,' omitting the 27 May 1946 FLC transfer NavSource records). Delivered date corroborates the 15 Jul 1942 completion/commissioning. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-05
-
[7]EPA Superfund Enterprise Management System (SEMS/CSM) site profile, WEAVER SHIPYARD, 1601 S. Childers, Orange, TX 77630, EPA ID TXD988083853 (live page verified 2026-10-05) [other_primary]
- Locator
- EPA SEMS profile TXD988083853 (NPL Status: Not on the NPL; Non-NPL Status: NFRAP)
- Finding type
- environmental_record
- Finding
- EPA carries a Superfund site profile for this hull's builder yard: 'WEAVER SHIPYARD,' 1601 S. Childers, Orange TX 77630 (EPA ID TXD988083853) - Non-NPL status 'NFRAP - Site does not qualify for the NPL based on existing information.' Documents that the yard site underwent Superfund screening and did not qualify for the National Priorities List.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-05
- Study period
- screening-era record
- Population
- Weaver yard site (post-closure screening)
- Limitations
- Yard-level environmental record, not a hull record - documents site screening status of the builder's property, not materials aboard this or any vessel, and does not specify asbestos. The NFRAP determination is a screening-level outcome ('does not qualify based on existing information'), not a finding that no contamination existed.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-06
-
[8]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 U.S. service era (1942-46).
- 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) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-07
-
[9]Era inference built on: NavSource spec block (2 x GM 8-268A diesels, 880 bhp; wooden YMS-1-class hull per NavSource YMS/BYMS index - built at 35 yacht yards; class designed by Henry B. Nevins, Inc.); uboat.net class data; shipbuildinghistory yard history ('wooden mine sweepers'); GAO HRD-80-2 (see ev-07) [other_primary]
- Locator
- NavSource 11/19067.htm spec block and 11/19idx.htm class description; uboat.net YMS class data; shipbuildinghistory Weaver yard history
- Finding type
- asbestos_application
- Finding
- A wooden-hulled diesel-powered motor minesweeper built in 1941-42 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a small diesel combatant of this type and period were exhaust-system lagging, machinery and engine gaskets, valve packing, electrical insulation, and brake linings on winch and sweep gear. As a diesel vessel she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply - and her wooden hull lacked the pipe runs and hull insulation typical of steel steam ships, narrowing (not eliminating) the era-typical asbestos applications.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1941-1946
- Population
- Weaver construction trades (1941-42); crew (1942-46); FLC-sale buyers/crews (post-May 1946)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-67. Names era-standard applications, 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-67-yms67-08
-
[10]Batch-9148 search ledger (this record): NavSource; uboat.net; NARA Special List 44 PDF; NARA Catalog search-within series 594258; NHHC DANFS probe; NHC Online Library index; NVR live probe; HyperWar YMS page probe; Cressman official chronology (1942-1946 chapters, zero mentions); officialmilitaryribbons campaign-credit compilation; shipbuildinghistory Weaver yard table + navalmarinearchive mirror; Wikipedia Weaver Shipyards article; EPA SEMS profile; wrecksite.eu probe; NavalCoverMuseum probe; secondary web litigation sweep; CourtListener (status per search_ledger) [other_primary]
- Locator
- search_ledger rows sl-uss-yms-67-yms67-01 through -22
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or litigation naming USS YMS-67 was found in the public sources searched. CourtListener fully searched this session: all four base queries completed - 'USS YMS-67' opinion returned 5 hits (all name collisions: Texas habeas/criminal dispositions whose OCR'd scanned PDFs match the hull string, none mentioning any vessel or asbestos); 'USS YMS-67' docket returned 1,769 hits and 'YMS-67' opinion 153 hits and 'YMS-67' docket 13,436 hits - all tokenization noise matching the number; the warranted asbestos-qualified variants ('YMS-67' asbestos, both types) each verified zero results. Secondary web sweeps surfaced only generic mesothelioma law-firm content not specific to this hull - excluded by source policy. No DANFS entry exists (NHHC URL 404 confirmed; NavSource states none available); NVR carries no entry (disposed 1946, pre-1987 coverage); no NHC Online Library page exists for this hull; the Cressman official Navy chronology contains zero mentions of YMS-67 across its 1942-1946 chapters; no wrecksite.eu entry (consistent with disposal by sale rather than loss).
- 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 - though the litigation repository search is complete (all four base queries plus both asbestos-qualified variants; every real hit is a name collision, and the asbestos-qualified subsets verified zero). The 7/15/1942-8/31/1945 deck log, any later logbooks covering the postwar Japan/China sweeping and the FLC sale, Weaver work packages, and the FLC disposal/sale file are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-67-yms67-09