Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 530-packet.md (7 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-lsm-12-lsm12-pkt-530-packet-md
-
[2]NavSource Online, Amphibious Photo Archive, USS LSM-12 (live page verified 2026-10-01 through Studio-side fetch after Firecrawl keyless quota exhaustion) [museum_official]
- Locator
- NavSource hull page, history/specification block (lines 24-68) and photo caption (line 78)
- Finding type
- vessel_history
- Finding
- NavSource identifies USS LSM-12 as an LSM-1-class landing ship medium, laid down 20 March 1944 at Brown Shipbuilding Co., Houston, Texas; launched 30 April 1944; and commissioned 31 May 1944 with Lt. Ashley W. Lindley, USNR, in command. It records Asiatic-Pacific service in the Lingayen Gulf landing (9 January 1945) and the Okinawa Gunto operation (1-24 April 1945), broaching on the Okinawa beach and breaking up on 4 April 1945, decommissioning at Okinawa 24 April 1945, two World War II battle stars, and hulk donation to the Government of the Ryukyu Islands on 10 July 1957. Its specification block lists 5 officers and 54 enlisted; two Fairbanks Morse 38D81/8X10 reversible diesel engines with hydraulic clutch, direct drive, 1,440 BHP each at 720 rpm; twin propellers and 2,800 shp; and diesel-driven generators.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1944-1957
- Population
- Brown Shipbuilding construction workers (1944); ship's company (1944-1945); Okinawa salvage/disposal personnel (1945-1957)
- Limitations
- NavSource is a specialist volunteer archive rather than a Navy registry. The page establishes the stated historical and machinery facts but does not identify asbestos-containing material, asbestos quantity, remaining material, individual exposure, causation, or legal eligibility. Its photo caption says the abandoned hull was cannibalized for spare parts, but does not identify any removed material.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-12-lsm12-01
-
[3]Naval History and Heritage Command, 'Casualties: U.S. Navy and Coast Guard Ships' (live page verified 2026-10-01) [nhhc_danfs]
- Locator
- NHHC casualties list, 'Landing Ship, Medium (LSM)' section, USS LSM-12 entry
- Finding type
- vessel_history
- Finding
- NHHC's Navy-and-Coast-Guard casualties list states that USS LSM-12 foundered after damage by a Japanese suicide boat off Okinawa, Ryukyu Islands, on 4 April 1945.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1945-04-04
- Population
- Ship's company during Okinawa operation
- Limitations
- This official casualty-list entry corroborates the loss date, place, and stated cause; it does not provide construction dates, material composition, asbestos condition, exposure information, causation, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-12-lsm12-02
-
[4]National Archives, Ship Plan Index (live research target; Firecrawl unavailable because shared keyless quota reported exhausted) [other_primary]
- Locator
- NARA Ship Plan Index landing page; record-level LSM-12 query not completed because the required Firecrawl connector was quota-blocked
- Finding type
- historical_record
- Finding
- The National Archives Ship Plan Index is the identified public research route for Bureau of Ships plan records. No record-level search result, ship-specific asbestos plan, survey, material inventory, or disposal file for LSM-12 was retrieved in this batch; RG 19 plan and specification records remain an archival lead.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1944-1957
- Limitations
- This is an access/retrieval gap, not evidence that no plan or asbestos record exists. It does not establish asbestos presence or absence aboard this hull, and it does not substitute for a series-level archival request.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-12-lsm12-03
-
[5]CourtListener API v4 via authenticated /Users/charlesfletcher/devin-prompts/cl-auth-search.py: exact-name and hull-number opinion requests initiated; fleet pacing did not return results during this batch [court_record]
- Locator
- Authenticated helper stderr: 'authenticated request: type=o query_len=12' for exact name and 'authenticated request: type=o query_len=8' for hull number; no JSON result before fleet pacing wait
- Finding type
- historical_record
- Finding
- The required CourtListener litigation sweep was started through the authenticated v4 helper for exact name "USS LSM-12" and hull number "LSM-12" (opinion corpus). The helper logged authenticated requests but fleet pacing did not return a result before the allotted research interval. No CourtListener hit is classified as qualifying asbestos litigation, other litigation, or name collision because no result set was received.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- through 2026-10-01
- Population
- CourtListener opinion corpus; docket corpus not completed
- Limitations
- This is an incomplete sweep, not a no-result finding. No anonymous request, raw request, curl request, or v3 API request was made. Docket-corpus searches and result classification remain open; absence of a returned result cannot establish that qualifying litigation does not exist.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-12-lsm12-04
-
[6]Research sweep of NHHC, NavSource, NARA Ship Plan Index target, NVR, and CourtListener helper for ship-specific asbestos-relevant documentation [other_primary]
- Locator
- Search ledger rows sl-uss-lsm-12-lsm12-01 through -06
- Finding type
- asbestos_application
- Finding
- No ship-specific asbestos survey, product inventory, abatement record, hazmat disclosure, or qualifying primary-source exposure record was located for USS LSM-12. The hull's 1944 construction and documented diesel direct-drive plant supply class/era context only. The documented plant has no boilers or steam turbines, so no boiler/turbine-lagging pathway is asserted; asbestos aboard this hull remains unknown.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- class_or_era
- Accessed
- 2026-10-01
- Study period
- 1944-1957
- Population
- Construction workers (1944); crew (1944-1945); Okinawa salvage/disposal personnel (1945-1957)
- Limitations
- A negative public-source search does not prove asbestos absence. Construction era, builder, diesel machinery, general Navy asbestos use, and the vessel's loss cannot be converted into ship-specific product identification, quantity, remaining-material statement, exposure conclusion, causation, or legal eligibility. CourtListener and NARA portions were incomplete due pacing and Firecrawl access gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-12-lsm12-05