Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
-
[1]research packet 1050-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-31-yms31-pkt-1050-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-31 page (build/transfer/strike timeline, specifications; verified live 2026-10-04) [other_primary]
- Locator
- NavSource 11/19031.htm header block and specifications block
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: 'Laid down, 16 March 1942 as YMS-31 by the Greenport Basin & Construction Co., Long Island, NY; Launched, 23 May 1942; Completed, 18 August 1942; Transferred to France, 10 March 1944 as Primevere (D 212); Sold to France, 21 March 1949; Struck from the Naval Register, 28 April 1949; Reclassified D-353, D-10 and M-650, (dates unknown); Primevere decommissioned, 12 June 1962. Fate unknown.' Call sign November-Bravo-Mike-Mike. Specifications: displacement 270 t.; length 136'; beam 24' 6"; draft 8'; speed 15 kts; complement 32; armament one 3"/50 gun mount, two 20mm, two dcp; propulsion two General Motors diesel engines, two shafts. Page states no DANFS history exists for YMS-31 and no ship image is held.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1962
- Population
- Greenport Basin & Construction trades (1942); USN crew (1942-44); French Navy crew (1944-62)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track NVR/DANFS but no primary-registry page exists for this hull (disposed 1949; see NVR ledger row). Contains no asbestos content. 'Completed' vs 'Commissioned' terminology for 18 August 1942 is unresolved across sources.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-31-01
-
[3]National Archives and Records Administration, Special List #44: List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units (ship-number sequence), PDF p. 118 - YMS-31 entry (verified live 2026-10-04) [other_primary]
- Locator
- sl-44-ship-number.pdf, page 118, YMS section
- Finding type
- historical_record
- Finding
- NARA Special List 44 inventories US Navy deck logs held for YMS-31 covering 9/2/1942 - 3/10/1944 (entry verbatim: 'YMS-31 9/2/1942 3/10/1944'). The coverage begins about two weeks after the 18 August 1942 completion and ends exactly on the 10 March 1944 transfer to France - i.e., the logs appear to span the hull's entire U.S. Navy career.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-09-02 to 1944-03-10 (log coverage)
- Population
- USN crew (Sep 1942 - Mar 1944)
- Limitations
- Archival lead only: Special List 44 is a holdings inventory, not the logs themselves - the logs were not fetched or read this session and their digitization status in the NARA catalog could not be confirmed (catalog is JS-rendered and unfetchable). A deck log is a chronological record of events, not a materials record; it would document operations and locations, not asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-31-02
-
[4]Shipbuilding History (Tim Colton compilation), Greenport Basin & Construction Co. yard table + Yard Minesweepers (YMS/BYMS) table (verified live 2026-10-04; identical table mirrored at navalmarinearchive.com/sbh/) [other_primary]
- Locator
- shipbuildinghistory.com Greenport yard table, YMS 31 row; navalmarinearchive.com/sbh/smallships/ym.html, YMS 31 row
- Finding type
- vessel_history
- Finding
- The builder's output table records YMS 31 for the US Navy as a 136-ft minesweeper delivered 18-Aug-42, disposition 'To France 1944 as Primevere (D 212/D 353/D 10/M 650), condemned 1962 as Q 319'. Yard history: Greenport Basin & Construction Company was started in the mid-19th century by Pliny C. and Theodore W. Brigham building fishing vessels and yachts; during WWII it acquired neighboring Greenport Shipyard Company and expanded into steel boatbuilding. The class table identifies the type as one of 561 wooden-hulled minesweepers built by 35 boatyards 1942-45 and notes ~30 YMS transferred to the Free French Navy in 1944.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1962
- Population
- Greenport construction trades (1942); French Navy disposal/condemnation trades (1962)
- Limitations
- A reputable secondary compilation (Colton's Shipbuilding History), not a primary registry - the 'condemned 1962 as Q 319' disposition and the Free French transfer framing rest on compiled sources. Q 319 as a post-condemnation hulk number is consistent with the French Navy 'batiment de servitude' series but no primary French record for it was located. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-31-03
-
[5]Service historique de la Defense (French Ministry of Armed Forces archives), archive notice AA/375/I/5/176/2, 'DRAGUEURS COTIERS (type americains YMS): GENET - PIMPRENELLE - PERCE-NEIGE - PRIMEVERE - PETUNIA - ZINNIA', dates 1954-1963, physical file held at Châtellerault (verified live 2026-10-04) [other_primary]
- Locator
- servicehistorique.sga.defense.gouv.fr ark:/950630 (cote AA/375/I/5/176/2)
- Finding type
- historical_record
- Finding
- The French defense archives hold a technical dossier ('dossiers techniques des batiments de la Marine et des avaries, 1924-1977', series AA 5I) covering PRIMEVERE (ex-YMS-31) alongside five other ex-US YMS-type coastal minesweepers, spanning 1954-1963 - the hull's last French decade including its 1962 decommissioning. This is the most authoritative located lead for the hull's post-transfer configuration and any material-content documentation.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1954-1963 (file coverage)
- Population
- French Navy crew and yard/maintenance trades, 1954-1963
- Limitations
- Archival lead only: the notice is a catalog record (cote AA/375/I/5/176/2, physical format, Châtellerault) - the dossier itself was not fetched and may not be digitized; contents, including any equipment/material detail, are unknown. Covers 1954-1963, so it would not document the 1942 US build or 1944 transfer. No asbestos content in the notice itself.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-31-04
-
[6]U.S. Naval Institute Proceedings, 'Saga of a YMS' (January 1948, Vol. 74/1/539) - first-hand officer account of the class plant and habitability; plus NavSource YMS class index (11/19idx.htm) class description [other_primary]
- Locator
- USNI Proceedings Jan 1948 'Saga of a YMS' machinery description; NavSource 11/19idx.htm class header; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- Class-level plant: the YMS type was a 136-ft wooden-hulled auxiliary motor minesweeper built at 35 yacht yards (NavSource class index); the machinery fit per a serving officer's account was two GM main-propulsion diesels, a similar diesel direct-connected to a generator for magnetic minesweeping, and two Hercules 30-kW diesels for auxiliary power - all diesel, no steam plant. Era-standard applications on such a craft would be exhaust-system lagging, machinery gaskets and packing, and electrical wiring insulation, in a cramped and 'wholly inadequate ventilating' wooden hull. Built inside the Navy's documented asbestos-use era (GAO HRD-80-2; see ev-06).
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1962
- Population
- Greenport Basin construction trades (1942); USN crew (1942-44); French Navy crew/maintenance (1944-62); condemnation trades (1962)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-31. Names era-consistent applications, not confirmed installed materials. No quantity, no manufacturer attribution. The diesel-only plant removes the boiler/turbine lagging pathway dominant on steam vessels - the exposure envelope for this type is narrower than for steam ships of the same era.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-31-05
-
[7]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 US build (1942), USN service (1942-44), and French service era (1944-62).
- 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 returns HTTP 403 to automated fetch, confirmed 2026-10-04) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-31-06
-
[8]Batch-8937 search ledger (this record): NARA Special List 44 verified p. 118; NavSource vessel and class pages; shipbuilding-history yard and class tables; uboat.net warship card; SHD archive notice AA/375/I/5/176/2; GAO product page; NHHC DANFS (no entry); NVR (no record, pre-1987 disposal); CourtListener (blocked); secondary web sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-31-01 through -11
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or litigation naming USS YMS-31 / Primevere was found in the public sources searched (see search_ledger). No DANFS entry exists (NavSource standing note; NHHC URL returns 404). CAVEAT: CourtListener could not be queried this session - the fleet-wide pacing limiter returned budget-spent on every attempt; logged as blocked in search_ledger, not a negative result. Secondary web sweeps surfaced only law-firm marketing content asserting asbestos on 'minesweepers' generically (mesothelioma.com, mesotheliomahope.com) - excluded by source policy; none names this hull.
- 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 - wooden diesel minesweepers still carried era-standard gaskets, lagging, and electrical insulation. The litigation repository search is a genuine open gap (paced out, not run). The NARA deck logs (SL-44 p. 118) and the SHD Châtellerault dossier are undigitized leads that could carry material detail. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-31-07