Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet 732-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-lst-831-lst831-pkt-732-packet-md
-
[2]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, LST-831 [nhhc_danfs]
- Locator
- DANFS entry, service and disposition paragraphs
- Finding type
- vessel_history
- Finding
- NHHC's official DANFS entry states that LST-831 served in the Asiatic-Pacific theater and participated in the assault and occupation of Okinawa Gunto from April through June 1945; performed occupation duty in the Far East until early November 1945; and was transferred to the Maritime Administration for final disposition on 19 December 1947. DANFS credits one World War II battle star.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-1947
- Population
- U.S. Navy/Coast Guard-manned crew and Far East occupation personnel
- Limitations
- DANFS provides no detailed voyage chronology, crew roster, material inventory, asbestos finding, or post-MARAD disposition.
- Atlas source
- true
- Evidence ID
- ev-uss-lst-831-lst831-02
-
[3]NavSource Online: Amphibious Photo Archive, USS LST-831 [museum_official]
- Locator
- Live page, history bullets, awards section, and final-disposition line
- Finding type
- historical_record
- Finding
- NavSource's live USS LST-831 page identifies this hull as an LST-542-class tank landing ship, records the 1944 construction and 8 November 1944 commissioning, Okinawa Gunto operation from 1 April through 10 June 1945, Far East occupation periods, decommissioning at New Orleans on 15 April 1946, transfer to the Maritime Commission on 19 December 1947, and final disposition as unknown.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1947
- Population
- U.S. Navy/Coast Guard-manned crew and later Maritime Commission personnel
- Limitations
- NavSource supplies the decommissioning date and detailed disposition wording not present in DANFS, but does not document asbestos, abatement, hazmat, or individual exposure. Its page also says the Naval Register striking date is unknown.
- Atlas source
- true
- Evidence ID
- ev-uss-lst-831-lst831-03
-
[4]NavSource Online: Amphibious Photo Archive, USS LST-831 specifications [museum_official]
- Locator
- Live page, Specifications section
- Finding type
- historical_record
- Finding
- NavSource's LST-542-class specification block reports 328-foot overall length, 50-foot beam, 11.6-knot trial speed, complement of 13 officers and 104 enlisted, troop accommodations for 16 officers and 147 enlisted, and two General Motors 12-567A diesel engines with Falk reduction gears, two propellers, 1,700 shaft horsepower, and three diesel-drive 100-kW 230-V DC ship-service generators.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1946
- Population
- LST-542-class ship's company and engineering personnel
- Limitations
- The figures are a class/specification block rather than a hull-specific muster or engineering plan. DANFS does not verify the complement. No asbestos or insulation content is stated.
- Atlas source
- true
- Evidence ID
- ev-uss-lst-831-lst831-04
-
[5]Bureau of Ships, Ships' Data, U.S. Naval Vessels, Vol. 2 (January 1945), LST design table [other_primary]
- Locator
- LST design table; LST-542 design grouping and machinery rows
- Finding type
- asbestos_application
- Finding
- Era/design context only: Bureau of Ships 1945 design data identifies the LST design groups as diesel-powered with two GM 12-567A engines and no boilers; period asbestos-relevant applications for this type may include diesel/exhaust insulation, gaskets and packing, deck coverings, accommodation insulation, electrical insulation, and friction materials.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1944-1947
- Population
- 1944 shipyard trades, engineering crew, maintenance workers, and later disposal personnel
- Limitations
- Class/era inference, not a ship-specific material finding. The source identifies machinery/design characteristics but does not state asbestos content, presence, quantity, condition, removal history, exposure, or causation aboard LST-831.
- Atlas source
- true
- Evidence ID
- ev-uss-lst-831-lst831-05
-
[6]Batch-7373 source review and search ledger: NHHC DANFS, NavSource, Bureau of Ships design data, NARA Special List No. 44, and authenticated CourtListener helper status [other_primary]
- Locator
- search_ledger rows sl-uss-lst-831-lst831-01 through -09
- Finding type
- historical_record
- Finding
- No ship-specific asbestos record was located in the authoritative vessel sources reviewed: the NHHC DANFS entry, live NavSource page, and BuShips design data contain no LST-831 asbestos, insulation-material, survey, abatement, or hazmat disclosure. The authenticated CourtListener sweep was stopped by the fleet-wide pacing stand-down before a result response, so litigation is an open gap rather than a no-result finding.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- This is a negative finding about records located, not proof that asbestos was absent. CourtListener exact-name and exact-hull queries were not completed after the helper reported the shared pacing stand-down; no litigation conclusion is drawn.
- Atlas source
- true
- Evidence ID
- ev-uss-lst-831-lst831-06
-
[7]National Archives and Records Administration, Special List No. 44, by Ship Numbers [other_primary]
- Locator
- PDF page 55, LST-831 rows
- Finding type
- historical_record
- Finding
- NARA Special List No. 44, by ship number, lists LST-831 with logbook coverage beginning 8 November 1944 and extending through 30 June 1945, providing an archival lead for the vessel's commissioning and wartime record.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1945
- Population
- Ship's company and wartime operations
- Limitations
- The index confirms logbook coverage dates, not the contents of the logs. No logbook volume was retrieved and this row makes no asbestos or exposure finding.
- Atlas source
- true
- Evidence ID
- ev-uss-lst-831-lst831-07
-
[8]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, LST-831 [nhhc_danfs]
- Locator
- DANFS entry, opening paragraph
- Finding type
- vessel_history
- Finding
- NHHC's official DANFS entry states that LST-831 was laid down on 19 August 1944 at Ambridge, Pennsylvania, by American Bridge Co.; launched on 6 October 1944; sponsored by Mrs. C. J. Connolly; and commissioned on 8 November 1944.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944
- Population
- American Bridge construction trades and initial Navy/Coast Guard-manned crew
- Limitations
- Supports identity and construction milestones only. DANFS does not state asbestos content, crew complement, machinery details, decommissioning date, or final disposition.
- Atlas source
- true
- Evidence ID
- ev-uss-lst-831-lst831-01