Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]DANFS, 'Barbet II (YMS-45)' - official NHHC ship-history entry by Raymond A. Mann, 7 March 2006 (live page returned 404 on 2026-09-23; verbatim text retrieved from Wayback capture 20250406150129) [nhhc_danfs]
- Locator
- DANFS 'Barbet II (YMS-45)' entry, spec block and construction/first-service paragraphs (1941-1945)
- Finding type
- vessel_history
- Finding
- Identity and construction: 'YMS-45 was laid down on 20 June 1941 at Brooklyn, N.Y., by the Wheeler Shipbuilding Corp.; launched on 20 April 1942; and commissioned on 8 June 1942, Lt.(jg.) LeRoy E. Rogers, Jr., USNR, in command.' DANFS spec block: YMS-1 class; dp. 320; l. 136'0"; b. 24'6"; dr. 6'1"; s. 12 k.; cpl. 33; a. 1 3", 2 20mm. WWII service: reported to Commander, Eastern Sea Frontier after trials and outfitting; departed Norfolk 31 August 1942 in company with YMS-44 for Bermuda; escort duty in the West Indies through the end of the war in Europe; based at Bermuda until 4 October 1943, then moved with YMS-44 to Guantanamo Bay, Cuba; returned to Norfolk 11 June 1945; departed 18 July 1945 with Task Unit 29.01 for the Pacific; transited the Panama Canal 29 July - 1 August; reached San Pedro 13 August; seven weeks at San Diego; arrived Pearl Harbor 13 October; departed 1 December with four other motor minesweepers for the Ryukyus.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 1941-1945
- Population
- Wheeler Shipbuilding Corp. construction workforce, 1941-42; ship's company 1942-1946
- Limitations
- DANFS documents identity, builder, dates, and service narrative - not materials or asbestos content. Live NHHC URL 404s (standing NHHC link-rot issue documented in BATCH-01); the verbatim DANFS text was read directly from a 2025-04-06 Wayback capture, so this row is 'verified' rather than 'partial'.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-01
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[2]DANFS, 'Barbet II (YMS-45)' - official NHHC ship-history entry (Wayback capture 20250406150129) [nhhc_danfs]
- Locator
- DANFS 'Barbet II (YMS-45)' entry, 1945-1960 service/disposition paragraphs
- Finding type
- vessel_history
- Finding
- Postwar service and disposition: arrived Buckner Bay, Okinawa, 20 December 1945 and conducted minesweeping operations there about a month; three-week visit to Sasebo, Japan, February 1946; returned via Pearl Harbor to San Francisco 28 March; departed 13 June with TU 99.12.9 via San Diego, reached the Canal Zone 28 June; entered New York 12 July and decommissioned there 5 August 1946. In reserve until 13 January 1947, then in service as school ship for 3d Naval District reservists; named Barbet and redesignated AMS-41 on 19 August 1947; placed in commission, in reserve, 11 May 1950; placed in full commission 21 November 1950; school-ship duty for New York reservists until early 1952, then reassigned to Mine Squadron 4 and the Mine Countermeasures Station, Panama City, Fla., with repair periods along the east coast for the remainder of her active career. Redesignated MSC(O)-41 on 7 February 1955; began inactivation at Green Cove Springs, Fla., 18 April 1955; decommissioned there 17 June 1955; struck from the Navy list 1 November 1960; 'Details regarding her ultimate disposition are unavailable, but, presumably, she was scrapped.' Earned one battle star as YMS-45 for postwar minesweeping off Okinawa and in Japanese waters.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 1945-1960
- Population
- Ship's company and Naval Reserve trainees 1946-1955 (3d Naval District, Panama City); Green Cove Springs inactivation/reserve workforce 1955-1960
- Limitations
- Documents service chronology, reclassifications, and the stricken date - not materials or asbestos content. DANFS's own words on disposition: details unavailable, 'presumably' scrapped - carried as such, not upgraded to 'scrapped' as fact. The east-coast repair periods ('at various locations') are documented as events but no yard names, scope, or material content is given.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-02
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[3]NavSource Online, Mine Warfare Vessel Photo Archive - 'Barbet (MSC[O] 41), ex-Barbet (AMS 41), ex-YMS-45' (navsource.org/archives/11/19045.htm; retrieved from Wayback capture 2024-12-27) [other_primary]
- Locator
- NavSource 11/19045, chronology block, specifications block, commanding-officer table
- Finding type
- vessel_history
- Finding
- Hull chronology supplement beyond DANFS: completed 5 June 1942; call sign November-Echo-Bravo-Hotel; 'Naval Vessel Register of 1 January 1949 lists reclassification date as September 1947' (conflicts with DANFS's 19 August 1947 - see correction row); reclassified Coastal Minesweeper (Old) MSC(O)-41 on 7 February 1955 (agrees with DANFS); struck from the Naval Register 1 November 1960 'and scrapped.' Specifications: 270 t., 136', 24'6" beam, 8' draft, 15 kts., complement 32; armament one 3"/50 dual-purpose mount, two 20mm mounts, two depth-charge projectors; propulsion two 880-bhp General Motors 8-268A diesel engines, Snow and Knobstedt single-reduction gear, two shafts. Commanding officers listed: LTJG LeRoy E. Rogers, Jr., USNR (8 June 1942); LT Charles Edward Bradford, USN (21 November 1950 - 1 March 1951); LT T. Ellis Peak, Jr., USN (1 March 1951 - 21 November 1951); LT R. E. Schwartz, USNR (21 November 1951 - 5 November 1952); LT Thomas Hanson Sherman, Jr., USN (1953).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 1942-1960
- Population
- Ship's company 1950-1955 (named commanding officers)
- Limitations
- Reputable volunteer-maintained photo/history archive, not an official record - used for the AMS-41/MSC(O)-41 identity chain, spec detail, the commanding-officer list, and the NVR-of-1949 note. Spec figures differ from DANFS (270 t. vs 320 t. full; 32 vs 33 complement; 15 vs 12 kts.; 8' vs 6'1" draft) - standard vs full-load framing, unresolved; DANFS adopted where they conflict. Contains no materials or asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-03
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[4]Shipbuilding History (Tim Colton), Wheeler Shipbuilding yard table (shipbuildinghistory.com/shipyards/emergencysmall/wheelerw.htm) and YMS program table (shipbuildinghistory.com/smallships/ym.htm); uboat.net Allied Warships ship/9465; navypedia.org YMS class table (us_sc_pcs_yms.htm); DANFS (Wayback capture 20250406150129); NavSource 11/19045 (Wayback capture 20241227152011) [other_primary]
- Locator
- wheelerw.htm YMS-45 table row and yard-history paragraph; ym.htm YMS-45 row; uboat.net ship/9465 build block; navypedia YMS45 row; NavSource chronology block
- Finding type
- historical_record
- Finding
- Three source discrepancies documented, not reconciled: (a) Builder location - DANFS states 'laid down ... at Brooklyn, N.Y., by the Wheeler Shipbuilding Corp.'; Shipbuilding History's Wheeler yard table places this hull at the Whitestone NY yard ('YMS 45 ... Reclassified 1947 as Barbet (AMS 41, later MSCO 41), struck 1960'), and its yard history explains the two-yard structure: Wheeler Yacht Co. founded in Brooklyn, the second yard 'operated as Wheeler Shipbuilding Corp., at Whitestone NY'; uboat.net likewise gives Whitestone; navypedia agrees with DANFS's Brooklyn. (b) Commissioning date - DANFS 8 June 1942 (with named commissioning officer) vs uboat.net 'Commissioned 5 Jun 1942' and NavSource 'Completed 5 June 1942' - 5 June is the completion/delivery date; DANFS adopted. (c) AMS-41 reclassification date - DANFS and NavSource give 19 August 1947; NavSource notes the Naval Vessel Register of 1 January 1949 lists September 1947; navypedia also gives 9.1947. (d) Stricken date - DANFS and NavSource 1 November 1960; navypedia prints 'stricken 1957?' - flagged uncertain; DANFS adopted.
- Verification
- disputed
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 1941-1960
- Limitations
- Documents disagreements between official (DANFS) and secondary compilations - DANFS is adopted where they conflict, but the builder-location split is genuinely unresolved because Colton's yard table specifically assigns this hull to the Whitestone (second) yard while DANFS names the company at Brooklyn. None of these sources contains materials or asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-04
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[5]Shipbuilding History (Tim Colton), 'Yard Minesweepers (YMS)' program table and Wheeler Shipbuilding (Whitestone) yard table; uboat.net Allied Warships, USS YMS-45 (ship 9465); navypedia.org, YMS1 class table [other_primary]
- Locator
- ym.htm YMS-45 row; wheelerw.htm YMS-45 row; uboat.net/allies/warships/ship/9465.html build block; navypedia.org/ships/usa/us_sc_pcs_yms.htm YMS45 row
- Finding type
- vessel_history
- Finding
- Build-table corroboration naming this hull: Shipbuilding History's YMS program table lists 'YMS 45 | Wheeler Shipbuilding | Whitestone NY | 136 | 320 | 5-Jun-42 | Reclassified 1947 as Barbet (AMS 41)' - the 5 June 1942 figure is delivery/completion, consistent with NavSource's 'Completed 5 June 1942'. uboat.net's Allied Warships entry for USS YMS-45 (ship 9465) lists: built by Wheeler Shipbuilding Corp. (Whitestone, Long Island, New York); ordered 1 April 1941; laid down 20 June 1941; launched 20 April 1942; 'commissioned' 5 June 1942 (completion-vs-commissioning conflation, see correction row). navypedia's YMS table lists the hull as 'YMS45, 9.1947- AMS41, 2.1955- MSC(O)41 | 9.1947- Barbet | Wheeler, Brooklyn | 6.1941 | 20.4.1942 | 6.1942 | stricken 1957?'.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 1941-1942
- Population
- Wheeler yard construction workforce, 1941-42
- Limitations
- Secondary compilations used for corroboration and the builder-location/ordered-date details DANFS lacks - consistent with DANFS on the dates that matter (laid down, launched, commissioned). The Whitestone-vs-Brooklyn and 'stricken 1957?' discrepancies are handled in the correction row. None of these sources contains materials or asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-05
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[6]U.S. Naval Institute Proceedings 74/1/539 (January 1948), 'Saga of a YMS' - first-person account of YMS-class machinery and habitability by a serving officer (class-level description); YMS-1-class design particulars applied as era/design inference; no hull-specific material record located [other_primary]
- Locator
- USNI Proceedings January 1948 article (class-level machinery description); no hull-specific document
- Finding type
- asbestos_application
- Finding
- No ship-specific asbestos record located for this hull. Class/era inference only: as completed, this hull is a YMS-1-class wooden-hulled motor minesweeper powered by two General Motors 8-268A diesel engines on two shafts (class specification), rather than a steam plant - no boilers and no steam distribution, which structurally eliminates the era's dominant shipboard asbestos application, thermal insulation of boilers and steam piping. A serving YMS officer's 1948 U.S. Naval Institute Proceedings account ('Saga of a YMS') documents the class machinery fit: wooden hull; two General Motors diesels for main propulsion; a similar diesel driving the magnetic-sweep generator; small auxiliary diesels for ship's power. What cannot be excluded is the era's ordinary remainder: diesel exhaust lagging, engine-room and machinery-space insulation, gasket and packing material at engine, piping, and valve joints, insulation felts in machinery and berthing spaces, and small components such as clutches and electric cables - materials commonly manufactured with asbestos fiber during WWII Navy procurement. Whether any asbestos-containing material was actually installed aboard this specific hull, in what quantity, or whether any remains, is unproven.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-23
- Study period
- 1941-1955
- Population
- Wheeler Shipbuilding construction workforce (1941-42); ship's company and Naval Reserve trainees 1942-1955
- Limitations
- Inference from documented class/design and construction era - NOT a hull materials record. No survey, specification, or work order naming YMS-45/Barbet/AMS-41/MSC(O)-41 was located. The usni.org article page returned HTTP 403 to automated fetch this session; the citation and content summary are carried from sibling batch records (batch-1701 USS Bobolink AMS-2, batch-1731 USS Brambling AMS-42 - same YMS-1 class) that verified it on 2026-09-23 - independent re-read recommended before production use. Establishes no asbestos content, quantity, location, condition, or individual exposure; does not establish or defeat any claim.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-06
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[7]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2
- Finding type
- asbestos_application
- Finding
- The Navy told GAO that all ships contain some asbestos in such components as clutches and electric cables, while thermal insulation was the Navy's major shipboard use of asbestos - meaning the WWII-era insulation installed aboard this hull's class (1942 construction) predates the Navy's early-1970s substitution of alternative insulation materials.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-23
- Study period
- 1979 report on earlier practice
- Population
- Navy shipyard workers and crews (program-level context)
- Limitations
- Program-level documentation; GAO fieldwork was conducted at Long Beach and Norfolk Naval Shipyards decades after this hull's construction and disposal. Supports general era context for Navy insulation practice, not any fact specific to this hull - and for a wooden-hulled diesel craft the 'major use' (thermal insulation of steam plant) is structurally diminished. Full text not retrieved (gao.gov returns 403 to automated fetches, a standing issue documented in prior batches); product-page description used.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-07
-
[8]Corn, Jacqueline Karnell, and Jennifer Starr, 'Historical perspective on asbestos: Policies and protective measures in World War II shipbuilding,' American Journal of Industrial Medicine 11:3 (1987) 359-373 (PMID 3555021; DOI 10.1002/ajim.4700110311) [other_primary]
- Locator
- PubMed indexing verified via NCBI eutils esummary, PMID 3555021
- Finding type
- asbestos_application
- Finding
- Peer-reviewed historical scholarship documents that asbestos was used extensively as a fireproofing and insulating material in U.S. shipbuilding during World War II, the era in which this hull was built (1941-42) - wartime production conditions and Navy material specifications made asbestos-containing insulation, packing, and gasket materials standard practice across the construction industry, including small combatant and auxiliary craft.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-09-23
- Study period
- WWII era
- Population
- WWII shipbuilding workforce (industry-level)
- Limitations
- Industry-level scholarship, not a vessel record - documents WWII shipbuilding asbestos practice generally, with emphasis on large production shipyards. A wooden-hulled 136-foot diesel minesweeper built at a yacht yard is a materially different asbestos-density case than the steam-driven steel ships that dominate the scholarship; this row supplies era context only and supports no hull-level finding.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-08
-
[9]National Archives, Special List 44 'List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units' (ship-number index) and 'Navy Deck Logs Available in the National Archives Catalog' (archives.gov/research/military/logbooks/navy-online, full index searched 2026-09-23) [other_primary]
- Locator
- SL-44 ship-number index, entry 'YMS-45 6/8/1942 - 8/31/1945' (sl-44-ship-number.pdf); NARA digitized-online index, YMS/AMS entries section (absence confirmed by full-text search of the complete 8.5MB index page)
- Finding type
- historical_record
- Finding
- Deck-log status: NARA Special List 44 (ship-number index to U.S. Navy deck logs in NARA custody) lists one run for this hull - 'YMS-45, 6/8/1942 - 8/31/1945' - spanning commissioning through the Pacific deployment; it does NOT cover the postwar Okinawa/Sasebo minesweeping (Dec 1945-Feb 1946) or any post-1945 period. No entry exists under AMS-41, MSC(O)-41, or Barbet (SL-44's '(Barbet)' name entry maps to AMC-38, the other hull - verified in the index). Separately, the National Archives' published index 'Navy Deck Logs Available in the National Archives Catalog' (the authoritative list of fully digitized logs) does NOT list YMS-45, Barbet, AMS-41, or MSC(O)-41 under any identifier - while it does list sister bird-named AMS/ex-YMS conversions (e.g., Egret AMS-46/YMS-136), confirming the index covers this craft type. Catalog-level file-unit verification could not be performed (catalog API requires a key / JS-driven search, unavailable this session).
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 1942-1945 records
- Population
- Ship's company 1942-1945 (wartime log coverage)
- Limitations
- SL-44 establishes custody of a 1942-1945 log run; absence from the digitized-online index means no YMS-45 log is confirmed readable online - retrieval requires an Archives II request. It does not prove absence of later logs (the 1947-1955 AMS-41 era falls under the separate 1941-1959 deck-log series). Deck logs record operations/personnel, not materials - they would not ordinarily identify asbestos content. Catalog-API verification (key-required) not performed.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-09
-
[10]CourtListener API v4 (courtlistener.com), Opinion (type=o) and Docket (type=r) search indices - authenticated queries via fleet helper cl-auth-search.py; bare-'Barbet' queries cross-referenced from batch-1573 record (uss-barbet-amc38), executed 2026-09-23 [court_record]
- Locator
- search_ledger rows sl-uss-barbet-ams41-10 through sl-uss-barbet-ams41-16
- Finding type
- litigation_documented
- Finding
- No qualifying litigation located. CourtListener API v4 authenticated searches on 2026-09-23: 'USS Barbet' opinions 0, dockets 5 (all name-fragment collisions - Lehman Brothers bankruptcy, FEMA Trailer MDL, Biohaven v. Avilar, Sixteen Thirteen Marine v. Congentra, NYT v. Microsoft); 'YMS-45' opinions 0, dockets 0; 'AMS-41' opinions 0, dockets 11 (all unrelated - employment, school-board, and commercial dockets matching the token); 'MSC(O)-41' and 'MSCO-41' 0/0; 'MSC-41' opinions 1 (In re M/V MSC Flaminia, 339 F. Supp. 3d 185 - Mediterranean Shipping Company container-ship litigation, a name collision), dockets 17 (all unrelated). Bare-name coverage from sibling batch-1573 (same day, same corpus): 'Barbet' opinions 62 (all surname parties), 'Barbet minesweeper' 0, 'Barbet asbestos' 1 (Brown v. Cassens Transport, E.D. Mich. 2010 - 'Barbet' is a person name there), 'Barbet' dockets 97 (all collisions). No opinion or docket names USS Barbet, YMS-45, AMS-41, or MSC(O)-41 in any asbestos or personal-injury context.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 2026-09-23
- Limitations
- CourtListener indexes published opinions and RECAP dockets - an unadjudicated filing, settled case, or records outside those indexes would not appear. Docket-search hits are BM25-ranked name-fragment collisions; result pages beyond the first were not exhaustively reviewed. Absence of a located case does not prove no claim was ever filed; it establishes that no qualifying case was found in the searched corpus.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-10
-
[11]Batch-1730 search ledger (this record): NHHC DANFS via Wayback; NavSource via Wayback; Shipbuilding History YMS and Wheeler yard tables; uboat.net; navypedia; NARA SL-44 and digitized deck-log index; NVR; GAO HRD-80-2 product page; USNI Proceedings (class-level, via sibling-batch verification); PubMed PMID 3555021 via eutils; CourtListener API v4; shipyards.json (37 yard_ids) [other_primary]
- Locator
- search_ledger rows sl-uss-barbet-ams41-01 through sl-uss-barbet-ams41-19
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record was located in this research pass: no asbestos survey, abatement contract, hazmat disclosure, materials record, museum condition report, or docketed case naming YMS-45, Barbet, AMS-41, or MSC(O)-41 was found in the sources searched (see search_ledger). The only public web 'asbestos' hits associating this hull's type with asbestos are law-firm marketing pages making fleet-wide claims ('all Navy ships used asbestos'; 'almost 300 minesweepers') - excluded per batch source rules; none names this hull or documents anything specific to it.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 2026-09-23
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - it reflects what is published and searchable. The hull's wooden/diesel construction lowers the era-inference relative to steam contemporaries but cannot exclude the era's ordinary asbestos remainder (gaskets, packing, exhaust lagging, electrical cable). Does not establish that asbestos is or is not present; does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-barbet-ams41-11