Evidence
9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).
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[1]DANFS, Logic (AM-258) (builder, dates, full service narrative, lend-lease transfer, ROC service; verbatim transcription - live NHHC page returns 404; hazegray.org canonical offline; HyperWar DANFS mirror lacks AM-258) [nhhc_danfs]
- Locator
- DANFS entry, specifications block + service narrative
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: Admirable-class minesweeper (dp. 630; 184'6" x 33' x 10'; 14.5 k.; cpl. 104; 1x3", 2x40mm, 2 dep., 1 dep. (h.h.), 2 dct.) laid down by American Shipbuilding Co., Lorain, Ohio, 27 October 1942; launched 10 April 1943; sponsored by Lt. (j.g.) Mary Erbenz, USCGR; commissioned 21 November [1943], Lt. S. H. Squibb in command. After a Great Lakes cruise, shakedown in Chesapeake Bay; departed Little Creek, Va., 25 January 1944 for South America, arriving Recife, Brazil, 4 March; twelve months operating out of Recife with Mine Division 31, sweeping the main shipping channels of South American ports, escorting convoys Brazil-Trinidad, harbor patrol, and antisubmarine training. Arrived Miami 12 March 1945, received 'an extensive overhaul,' resumed minesweeping exercises June, operated along the east coast through summer, returned Miami 15 August. 'Logic was transferred to the Republic of China 28 August 1945 under lend lease. Into 1969 she serves the Nationalist Chinese Navy as Yung Shun (MSF-44).'
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1942-1969
- Population
- American Ship Building Co. construction trades 1942-43; wartime crew (design complement 104); Mine Division 31 personnel; Republic of China Navy crew 1945-1970
- Limitations
- DANFS documents service history and characteristics, not materials or asbestos content; the entry was written while the ship remained in ROC service (into 1969), so it does not record the 1970 striking or final disposition. The Miami 'extensive overhaul' is documented as an event but no facility is named - the only maintenance availability on this hull's record, and its yard is unidentified. Mirror transcription cited because the live NHHC page returns 404 and the HyperWar DANFS mirror lacks AM-258.
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-01
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[2]NavSource Online, Mine Warfare Vessel Photo Archive: Logic (AM-258) / ROCS Yung Shun (AM-44 / A-28) - class data, specifications, chronology, commanding officer listing, and photo captions incl. NARA 80-G-363480/363490 [other_primary]
- Locator
- NavSource 02258 page, specifications block + chronology + CO listing + photo caption blocks
- Finding type
- historical_record
- Finding
- NavSource specification block and chronology for this hull: call sign Nan-George-Sugar-Xray; laid down 27 October 1942 by American Shipbuilding Co., Lorain, OH; launched 10 April 1943; commissioned USS Logic (AM-258) 21 November 1943; transferred to the Republic of China 28 August 1945 and renamed ROCS Yung Shun (AM-44); reclassified A-28; 'Decommissioned and struck from the Naval Register 1 June 1970. Fate unknown.' Specifications: displacement 945 t.(fl); 184'6" x 33' x 9'9"; 14.8 kts.; complement 104; armament one 3"/50 dual-purpose mount, one twin 40mm mount, six single 20mm mounts, one hedgehog, four K-guns, two depth-charge tracks; propulsion two 1,710shp Cooper Bessemer GSB-8 diesel engines, National Supply Co. single reduction gear, two shafts - diesel, no boilers and no steam distribution piping. Photo captions document National Archives images 80-G-363480 and 80-G-363490 showing Yung Shun (AM-44) ex-USS Logic and Yung Hsiang (PCE-42) ex-USS PCE-869 transiting the Gatun locks, Panama Canal, 21 April 1946, flying Chinese flags but still wearing U.S. Navy hull numbers. Commanding officers: LT Stephen Henry Squibb USNR (21 Nov 1943 - 1 Aug 1944); LT John Owen Jones USNR (1 Aug 1944 - 11 Jul 1945); LT Francis Louis Tindall USNR (11 Jul 1945 - 28 Aug 1945).
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1942-1970
- Population
- Wartime and ROC-era engineering crews (context)
- Limitations
- NavSource is a volunteer-run archive reproducing official characteristics and NVR data; the propulsion row is not independently confirmed against a primary BuShips specification sheet - the Admirable-class builder/engine breakdown (AM-246 through AM-291 in the Cooper Bessemer GSB-8 group, consistent with same-yard sisters Jubilant AM-255 and Lance AM-257) supports Cooper Bessemer, while Wikipedia's ship infobox gives class-generic ALCO 539/Farrel-Birmingham (conflict logged in gaps). The '1,710shp' figure is the combined rating in NavSource's phrasing; class-level sources rate the GSB-8 at 855 shp each. Confirms machinery type only - says nothing about materials or asbestos content. Diesel plant means the steam-system insulation pathway (the Navy's major asbestos use per GAO) is largely absent by design; residual era materials are inference, not record. 'Struck from the Naval Register 1 June 1970' does not distinguish ROC Navy register striking from U.S. lend-lease file closure - ambiguity noted.
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-02
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[3]Encyclopedia of Cleveland History (Case Western Reserve University), 'American Ship Building Co.' - Lorain yard history (Cleveland Shipbuilding 1886; relocated to Lorain 1897; AmShip acquisition 1899; largest Great Lakes shipbuilder by 1952; Lorain yard closed December 1983) [other_primary]
- Locator
- Case Western Reserve Encyclopedia of Cleveland History article; BGSU GLMS-0075 finding aid company-history section
- Finding type
- vessel_history
- Finding
- Builder context: the Lorain yard that built this hull began as Cleveland Shipbuilding (1886), relocated to Lorain in 1897, and was acquired by American Ship Building Co. in 1899, becoming its Lorain Division. AmShip was the largest Great Lakes shipbuilder by 1952 and ranked 21st among WWII government contractors (per BGSU GLMS-0075 collection history); the Lorain yard closed December 1983 and the company entered bankruptcy in 1993, sold off 1995. The yard built 17 Admirable-class minesweepers including this hull (AM-255 through AM-266 block plus AM-222 through AM-226 per class listings).
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-09-22
- Study period
- 1886-1995; this hull 1942-43
- Population
- AmShip Lorain construction workforce (context)
- Limitations
- Yard-history context only - establishes the builder's identity, capacity, and wartime role, not materials used aboard this hull. No asbestos-specific finding about the Lorain yard is located in an authoritative source; law-firm content about AmShip asbestos exposure exists but is excluded per source rules. The hull-count for the Lorain Admirable block rests on secondary class listings.
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-03
-
[4]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 + indexed report text (gao.gov/assets/hrd-80-2.pdf blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO's program review of Navy asbestos exposure records the Navy's position that 'all ships contain some asbestos in such components as clutches and electric cables' and that thermal insulation was 'the Navy's major use of asbestos aboard ships.' Era-level confirmation that WWII-built Navy hulls carried asbestos-containing components; for this diesel minesweeper the thermal-insulation pathway is largely absent by design, leaving the small-component uses (cable insulation, gaskets, clutch/brake linings, exhaust lagging) as the era-consistent candidates.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-22
- Study period
- 1979 report; WWII-era construction context
- Population
- Navy personnel and shipyard workers (program context)
- Limitations
- Program-level documentation, not hull-specific; does not name this vessel, class, or builder and establishes no asbestos content, quantity, location, or exposure aboard this hull. gao.gov returns HTTP 403 to automated fetch - content via product-page description and indexed excerpt of the report text (standing issue since batch-01).
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-04
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[5]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):359-373 (1987) [other_primary]
- Locator
- Abstract and article, AJIM 11(3):359-373; DVB Circular 21-88-8 / M21-1 text as recited in BVA decisions
- Finding type
- asbestos_application
- Finding
- Peer-reviewed historical study documents that asbestos was used extensively as a fireproofing and insulating material in U.S. shipbuilding during WWII - the era and emergency construction program under which this hull was built at American Ship Building Co., Lorain, in 1942-43. VA adjudication guidance (DVB Circular 21-88-8, carried into M21-1) likewise recites that chrysotile, amosite, and crocidolite 'were used extensively in military ship construction' during WWII.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-22
- Study period
- 1940s era documented; article 1987; circular 1988
- Population
- WWII shipyard workers and ship crews (class context)
- Limitations
- Program/era-level documentation of asbestos use in WWII shipbuilding generally; does not name this vessel, class, or yard and does not establish that asbestos was installed aboard this hull, nor quantity, location, condition, exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-05
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[6]Batch-1230 search ledger (this record): DANFS via losthistory/hazegray mirror (live NHHC 404; HyperWar AM-258 absent); NavSource 02258 + sister cross-check 02255/02257; DPLA/NARA war-diary record 77500818; CourtListener API v4 (authenticated); VA BVA index; shipyards.json cross-check; BGSU GLMS-0075 finding aid; NARA record-group guide [other_primary]
- Locator
- search_ledger rows sl-uss-logic-am258-01 through sl-uss-logic-am258-10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located in the sources searched: no asbestos survey, specification, abatement contract, hazmat disclosure, court finding, or docketed asbestos case naming USS Logic / AM-258 / Yung Shun (AM-44 / MSF-44 / A-28) was found (see search_ledger). SCOPE LIMIT: the CourtListener litigation sweep could not be executed - the shared authenticated daily quota (2,800/day) was exhausted by parallel batch traffic for the entire session window (HTTP 429 across ~70 minutes of spaced probes, then a fresh window immediately re-exhausted, ~10.7h to next reset). Staged queries ('USS Logic,' 'U.S.S. Logic,' 'aboard USS Logic,' 'aboard the Logic,' 'AM-258,' 'AM 258,' 'Logic'+'minesweeper,' 'Logic'+asbestos, 'Yung Shun') are recorded unexecuted in sl-05/sl-06. VA BVA index search returned no decision naming this hull; law-firm listicle coverage naming this hull exists but is excluded per source rules (not evidence).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 2026-09-22
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - a 1942-43 combatant hull is era-consistent with asbestos-containing components, and the hull's thin documented maintenance history (one named overhaul event at Miami, facility unidentified; lend-lease transfer 1945; ROC service to 1970; unknown disposition) means the phases where such records would exist are simply unmapped. The litigation sweep specifically is incomplete: CourtListener was quota-blocked, so docketed litigation naming this hull cannot be ruled out from this session's work. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-06
-
[7]DANFS + NavSource 02258 + uboat.net (commissioning 21 November 1943; Cooper Bessemer GSB-8 / National Supply plant) vs Wikipedia USS Logic infobox ('21 November 1944'; 'ALCO 539 ... Farrel-Birmingham') [nhhc_danfs]
- Locator
- DANFS am258 narrative; NavSource 02258 spec block; uboat.net/allies/warships/ship/5323.html; en.wikipedia.org/wiki/USS_Logic_(AM-258) infobox; en.wikipedia.org/wiki/Admirable-class_minesweeper engine-group breakdown
- Finding type
- historical_record
- Finding
- Source conflict resolved: Wikipedia's ship infobox gives the commissioning date as '21 November 1944' and propulsion as '2 x ALCO 539 diesel engines ... Farrel-Birmingham single reduction gear.' DANFS, NavSource's hull-specific spec block, and uboat.net all fix commissioning at 21 November 1943 - consistent with the April 1943 launch and the documented 25 January 1944 departure for South America (a November 1944 commissioning is incompatible with twelve months of Recife operations ending March 1945). The Admirable-class engine breakdown places AM-258 in the Cooper Bessemer GSB-8 / National Supply Co. group (AM-246 through AM-291), matching NavSource and same-yard sisters Jubilant (AM-255) and Lance (AM-257); Wikipedia's ALCO 539/Farrel-Birmingham is the class-generic infobox value for the other engine group. 1943 commissioning and Cooper Bessemer carried; the Wikipedia variants are not adopted.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1942-1945
- Limitations
- Resolves secondary-source date and machinery discrepancies; Wikipedia's '1944' is likely a transcription error propagated from the class template. No asbestos content in any of these sources.
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-07
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[8]NARA (via DPLA): 'USS LOGIC - War Diary, 11/21/43-8/28/45,' catalog ID 77500818, microfilm serial 142624, Records of the Office of the Chief of Naval Operations WWII War Diaries (RG 38 lineage); plus NARA record-group guide (RG 24 deck logs; RG 19 BuShips design records; RG 181 naval district/shipyard records) [other_primary]
- Locator
- DPLA item 6e2e3b6c8e9b596b6a28f87b21ff172d; catalog.archives.gov/id/77500818; archives.gov/research/guide-fed-records/groups/024.html, /019.html, /038.html, /181.html
- Finding type
- historical_record
- Finding
- Confirmed archival holding for this hull: a WWII war diary covering commissioning (21 November 1943) through the lend-lease transfer (28 August 1945) exists at NARA College Park, catalog ID 77500818, microfilm serial 142624 - the day-by-day operational record that would document the 1945 Miami overhaul site, any in-service repairs, and the physical transfer event. Additional unretrieved leads: deck logs for the 1943-45 U.S. service period (RG 24); BuShips design records and Booklet of General Plans material for AM-258 / the Admirable class (RG 19) - the design records are the only realistic path to a materials schedule for this hull; lend-lease/ROC transfer documentation and ROC-era disposition records (RG 181 / State-Defense records as applicable).
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-22
- Study period
- 1943-1945 records
- Limitations
- Catalog-level confirmation only - the war diary's existence is verified via the DPLA record but its contents are unretrieved (requires research-room or reproduction order; no spend authorized). Existence of asbestos-specific documents for this hull is unknown until surveyed. Nothing in this row is an asbestos finding. NARA catalog API returned HTML shell, not queryable records, in-session (same limitation as batches 1154 and 1227).
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-08
-
[9]Bowling Green State University, Center for Archival Collections / Historical Collections of the Great Lakes: American Ship Building Company and Predecessors records, GLMS-0075 (1867-1989; 556.87 cubic feet of drawings + 27 cubic feet textual + 60 reels microfilm) [other_primary]
- Locator
- BGSU University Libraries finding aid, GLMS-0075 resource page
- Finding type
- historical_record
- Finding
- The builder's surviving corporate archive: BGSU holds the American Ship Building Company and Predecessors records (GLMS-0075), whose primary component is naval architectural drawings covering Great Lakes-built vessels including warships, plus corporate records such as minutes, correspondence, specifications, reports, and financials - including a Specifications and Contracts series with construction, renovation, repair, and component specifications. The Lorain yard built this hull in the AM-255-AM-266 block; a hull-level drawing or specification set for AM-258, if present in the collection, could resolve the materials questions the public record does not.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-22
- Study period
- 1942-43 construction records
- Limitations
- Finding-aid level confirmation only - the collection is unindexed to hull in public description; whether AM-258 drawings or specs survive is unverified until surveyed (drawings are in offsite storage, 72-hour access notice per the finding aid). Nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-logic-am258-09