Evidence
12 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-12).
-
[1]research packet 1075-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-62-yms62-pkt-1075-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-62 page - construction and service timeline, sponsor, transfer/striking/reclassification dates, specification block, 'no DANFS history' statement, photographic record [other_primary]
- Locator
- Timeline and Specifications blocks; page footer 'There is no DANFS history available for YMS-62'
- Finding type
- vessel_history
- Finding
- Timeline for this hull: laid down 12 November 1941 as YMS-62 by the Gibbs Gas Engine Co., Jacksonville, FL; launched 25 February 1942 (ship's sponsor Mrs. Spessard Holland, per NavSource); completed and commissioned as USS YMS-62 on 23 May 1942; transferred to France 24 October 1944 and named Clematite (D 323); sold to France 21 March 1949; struck from the Navy Register 28 April 1949; reclassified D-07 and M-647 in French service; decommissioned 17 June 1954; fate unknown. NavSource states explicitly: 'There is no DANFS history available for YMS-62.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1954
- Population
- Wartime crew (complement 32); construction workers at Gibbs yard
- Limitations
- Volunteer-compiled secondary archive (US Navy/official-derived data and donated photographs) - the record's best single timeline source but not itself a primary document. Dates corroborated against uboat.net and shipbuildinghistory.com. Does not address asbestos, materials, or exposure in any way.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-01
-
[3]uboat.net Allied Warships of WWII, USS YMS-62 (YMS-62) entry - order date, build milestones, transfer date [other_primary]
- Locator
- Ship data table (Ordered/Laid down/Launched/Commissioned/End service/History rows)
- Finding type
- vessel_history
- Finding
- Corroborating timeline for this hull: ordered 1 April 1941; built by Gibbs Gas Engine Co. (Jacksonville, FL); laid down 12 November 1941; launched 25 February 1942; commissioned 23 May 1942; end of US service 24 October 1944 with transfer to France. Adds the contract/order date absent from NavSource.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1944
- Population
- Wartime crew
- Limitations
- Specialist secondary database; independently corroborates every NavSource milestone. Renders the French name 'Clematine' - a variant spelling contradicted by the French Service Historique de la Defense index ('CLEMATITE') and NavSource ('Clematite'); treated here as a spelling variant, not a separate name. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-02
-
[4]Shipbuilding History (Tim Colton), 'Gibbs Gas Engine Works, Jacksonville FL' - yard history and build table row for YMS 62 [other_primary]
- Locator
- Build table row 'YMS 62 ... US Navy ... Minesweeper ... 23-May-42'; yard-history header paragraphs
- Finding type
- vessel_history
- Finding
- Builder record for this hull: yard table lists YMS 62, US Navy minesweeper, 278 tons displacement, 136 ft, delivered 23-May-42, 'To France 1944 as Clematite (D 323/D 07/M 647), decommissioned 1954.' Yard context: Gibbs Gas Engine Works, founded 1911, was a prolific builder of gas engines and small wooden and steel vessels in peacetime and both World Wars; renamed Gibbs Corporation after WWII; sold to Aerojet-General Shipyards in 1964 and absorbed into Jacksonville Shipyards; yard closed 1992 under Terex Corp.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1942
- Population
- Gibbs yard construction workers (Jacksonville, 1941-42)
- Limitations
- Independent researcher compilation widely used for US yard records; the 278-ton figure differs slightly from NavSource's 270 t - minor tonnage-definition variance noted, not adjudicated. Builder (Gibbs Gas Engine) is not an entry in shipyards.json, so related_shipyards is empty. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-03
-
[5]East Carolina University, Joyner Library, Manuscript Collection #703 - Harold V. Brown Jr. Papers finding aid (correspondence of the commanding officer of USS YMS-62, 1942-1943) [museum_official]
- Locator
- Collection overview and Scope and arrangement sections, MS #703
- Finding type
- historical_record
- Finding
- Commanding-officer correspondence documenting this hull's operating areas: Lt. Cmdr. Harold V. Brown Jr. commanded USS YMS-62 (1942-1943); letters written from New Orleans and Burwood, Louisiana (November 1942-February 1943), during passage to Norfolk, Virginia in heavy weather off Miami and Cape Hatteras (March 1943), and from Algeria (May-June 1943, including his promotion 7 May 1943 and duty as Senior Officer Present Afloat, 6 June 1943). Establishes the hull's stations - New Orleans and Burwood LA, then Algeria - documenting Gulf Coast service followed by a North African deployment in the post-Torch period; the letters do not themselves describe sweep operations.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1942-1943
- Population
- USS YMS-62 crew, 1942-1943 (Lt. Cmdr. Brown commanding)
- Limitations
- Institutional finding aid describing the letters, not the full correspondence; it does not name the ship's specific sweep operations or hull/materials details. Finding aid's biographical note carries an internally inconsistent birth year (1934) that is impossible for a 1942 commanding officer - flagging but not relied on for any date. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-04
-
[6]National Archives, 'Logbooks of the U.S. Navy Ships and Stations, 1941-1978' series (NAID 594258); batch manifest notes NARA inventories deck logs for YMS-62 covering 6/23/1942-1/31/1943 [other_primary]
- Locator
- NARA Catalog series NAID 594258; reference page https://www.archives.gov/research/military/logbooks/navy-deck-logs-1941-1959
- Finding type
- historical_record
- Finding
- Archival lead: NARA holds US Navy deck logs for YMS-62 with inventoried coverage 23 June 1942 - 31 January 1943 (per batch source data). Coverage begins one month after commissioning (23 May 1942) and ends while the ship was still in US service (transferred to France October 1944); whether additional volumes covering February 1943 - October 1944 exist in the series was not determined. YMS-62 does not appear on NARA's digitized deck-logs release list, so the logs are textual holdings at Archives II.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1942-1943
- Population
- USS YMS-62 crew, 1942-1943
- Limitations
- Coverage dates are asserted from the batch's NARA inventory data, not re-verified item-by-item: catalog.archives.gov is a JavaScript-only application that returned no machine-readable result to automated queries this session. Log coverage dates are not asserted as commissioning or decommissioning dates. Deck logs do not themselves document asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-05
-
[7]Service Historique de la Defense (France), 'Collection de documents relatifs a des batiments de la Marine Nationale' - index entry 'CLEMATITE Dragueur ex YMS 62 et ex D 323' (p. 406) [other_primary]
- Locator
- Alphabetical index under 'CLEMATITE', p. 406 of the PDF repertoire
- Finding type
- historical_record
- Finding
- French official archive index confirms the vessel's French identity: 'CLEMATITE - Dragueur [minesweeper], ex YMS 62 et ex D 323', and that the SHD holds a ship file on her. Independently confirms the transfer and fixes the authoritative French spelling (CLEMATITE).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1944-1954
- Population
- French Navy crew of Clematite, 1944-1954
- Limitations
- Index entry only - confirms a ship file exists at SHD but does not describe its contents; the underlying file (French service record 1944-1954, including any refit or material details) was not examined. No asbestos or materials content in the index entry itself.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-06
-
[8]NavSource Photo Archives, 'Auxiliary Motor Minesweeper (YMS) / British Motor Minesweeper (BYMS) Index' - class design and construction summary [other_primary]
- Locator
- Index header narrative and class specification block
- Finding type
- vessel_history
- Finding
- Class context: the YMS-1 class were wood-hulled auxiliary motor minesweepers designed by Henry B. Nevins, Inc.; 481 ships of the type shared the same general characteristics; built at 35 yacht yards rather than large shipyards; powered by General Motors 8-268A diesel engines on two shafts (designed shaft horsepower 880 total); used during WWII for inshore sweeping in preparation for amphibious assaults, including sweeping mines laid by enemy submarines off Jacksonville, FL and Charleston, SC as early as 1942. Survivors were reclassified AMS in 1947 and MSC(O) in 1955.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1941-1969
- Population
- YMS-class crews and yacht-yard builders (class context)
- Limitations
- Class-level description; establishes hull material (wood) and propulsion type (diesel, no steam plant) relevant to bounding the plausible asbestos footprint, but says nothing about this specific hull's materials. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-07
-
[9]Era inference built on: NavSource class data (wood hull; GM 8-268A diesel plant); GAO HRD-80-2 documentation of Navy-wide asbestos use in the construction era; standard 1940s small-craft practice [other_primary]
- Locator
- Inference combining ev-uss-yms-62-01 (diesel spec block), ev-uss-yms-62-07 (wood hull, class design), ev-uss-yms-62-09 (Navy-era asbestos use)
- Finding type
- asbestos_application
- Finding
- A wood-hulled diesel motor minesweeper built 1941-42 at a Florida yacht-yard-era builder sits inside the Navy's documented asbestos-use era, but without boilers or steam piping. Era-standard asbestos applications on a vessel of this type and size were limited to: diesel exhaust and muffler lagging, engine gaskets and packing, electrical switchboard insulation, and brake linings on sweep winches and the windlass - materially smaller in scope than aboard steam warships.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1942-1954
- Population
- Construction trades (Gibbs, 1941-42); US crew 1942-44; French crew 1944-54
- Limitations
- Class/era inference, not a hull record: no primary source names any asbestos product aboard YMS-62. The wooden hull and diesel plant bound the plausible applications; none are verified for this hull. Does not establish quantity, presence today, or any individual exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-08
-
[10]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) - product-page description [gao]
- Locator
- GAO product page HRD-80-2
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships during the WWII construction era and did not begin substituting alternative insulation materials until the early 1970s - placing this hull's 1941-42 construction and 1942-44 US service inside the documented Navy asbestos-use era.
- Verification
- partial
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1940s-1970s
- Population
- Navy shipyard workers and crews (program context)
- Limitations
- Program-level finding, not hull-specific; does not name YMS-62 or the YMS class. gao.gov returns HTTP 403 to automated fetches - the product-page description was used and full text was not pulled this session (standing limitation carried from Batch 01/98).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-09
-
[11]Batch-9143 search ledger (this record): NavSource; uboat.net; shipbuildinghistory.com; ECU Joyner Library finding aid; NARA catalog/digitized-logs list; French SHD repertoire; NVR; CourtListener opinion and docket searches; secondary web scan [other_primary]
- Locator
- search_ledger rows sl-uss-yms-62-01 through sl-uss-yms-62-12
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or docketed case naming YMS-62 was found in the sources searched (see search_ledger). Supporting negatives: no DANFS history exists for this hull (NavSource statement confirmed by NHHC 404); the ship is not carried on the Naval Vessel Register (disposed before NVR's pre-1987 coverage cutoff); her WWII deck logs are inventoried at NARA but not digitized; secondary web search surfaced no asbestos litigation naming the hull.
- 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 - only that no ship-specific documentation was found. The hull's French-service history (1944-1954) and unknown final disposition leave post-transfer material condition undocumented.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-10
-
[12]Designation/spelling cross-check: uboat.net ('Clematine') vs NavSource and shipbuildinghistory ('Clematite') vs Service Historique de la Defense official index ('CLEMATITE') [other_primary]
- Locator
- SHD repertoire index p. 406; uboat.net ship/9482; navsource.net/archives/11/19062.htm
- Finding type
- historical_record
- Finding
- CORRECTION: the French name circulates in two spellings. uboat.net renders 'Clematine'; NavSource and shipbuildinghistory.com render 'Clematite'. The French Service Historique de la Defense official index entry 'CLEMATITE - Dragueur ex YMS 62 et ex D 323' is the authoritative French-language source; 'Clematite' (clematis) is adopted here, with 'Clematine' recorded as a secondary-source variant.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1944-1954
- Limitations
- Spelling-level correction only - does not affect identity, dates, or disposition; no bearing on asbestos status.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-62-11