Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
-
[1]NavSource Online: Amphibious Photo Archive, USS LSM-142 (10/14/14142) - construction, commissioning, theater assignment, occupation service, decommissioning, disposal, specifications, commanding officers; stated source is the DANFS history extract from 'LSM-LSMR Amphibious Forces, Vol. II' (Turner Publishing, 1997) [other_primary]
- Locator
- NavSource 10/14/14142.htm header block, DANFS-extract narrative, specifications block, commanding-officers table
- Finding type
- vessel_history
- Finding
- Documented for this hull: LSM-1-class Landing Ship, Medium; laid down 17 April 1944 at Charleston Navy Yard, Charleston, S.C.; launched 15 May 1944; commissioned USS LSM-142 on 30 June 1944, LT. Thomas W. Armstrong USNR in command. WWII assignment: Asiatic-Pacific Theater, LSM Flotilla Six (CDR A. R. Quinn USN), LSM Group Sixteen (LCDR J. T. Brugger Jr. USNR), LSM Division Thirty-Two. Postwar Navy Occupation Service Medal qualifying periods in the Far East: 4-23 September 1945 and 7 October 1945 - 6 April 1946. Decommissioned 2 September 1946 at NOB Guam, Marianas Islands; struck from the Naval Register (date unknown per this source); earned one battle star for WWII service; final disposition: scuttled 14 September 1946 at Guam. Specification block: 520 t light / 743 t landing / 1,095 t full load; 203'6" ovl x 34'6" beam; 13.2 kt max; complement 5 officers + 54 enlisted; twin 40mm bow mount + four single 20mm; propulsion two Fairbanks Morse reversible diesels, direct drive, 1,440 BHP each, twin propellers 2,800 shp; diesel-driven ship's service generators.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1944-1946
- Population
- Charleston Navy Yard construction trades (Apr-Jun 1944); commissioned crew, nominally 5 officers + 54 enlisted plus embarked troops (1944-46)
- Limitations
- Ship-specific history only; contains no asbestos or material content. NavSource is a volunteer secondary compilation; its stated source is the Turner Publishing compilation of official histories, not a live NHHC DANFS page (history.navy.mil has no individual LSM-142 entry - candidate URLs 404 confirmed 2026-10-01). The one-battle-star credit is stated without naming the qualifying campaign; 'struck from the Naval Register' date is given as unknown by this source (see ev-06 for the conflicting 25 September 1946 variant).
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-01
-
[2]ShipbuildingHistory (T. Colton), 'Landing Ships, Medium' construction table; corroborating secondary compilations: uboat.net Allied Warships USS LSM 142 (ship/12753) and navypedia.org LSM class table [other_primary]
- Locator
- shipbuildinghistory.njscuba.net/us-navy-small/lsm/ table rows LSM-126..LSM-163 incl. LSM-142; uboat.net/allies/warships/ship/12753.html; navypedia.org LSM table row LSM142
- Finding type
- vessel_history
- Finding
- Independent compilation corroboration for this hull: ShipbuildingHistory's LSM table lists LSM-142 - Charleston NSY, Charleston SC - commissioned 30 June 1944 - 'scuttled off Guam 14-Sep-46,' consistent with the NavSource/Turner extract. uboat.net adds 'ordered 15 Sep 1943' and carries launched 18 May 1944 and stricken 25 September 1946 (conflicts carried in ev-06 and gaps). The program-level context is also confirmed: 558 LSMs were built in WWII by seven shipyards, the design originally designated LCT(7), 203.5 ft oa / 520 t light.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1943-1946
- Population
- Charleston Navy Yard construction trades (1944)
- Limitations
- Secondary compilations used for triangulation of milestones and to surface date conflicts; none is a primary registry and none contains asbestos content. The 'ordered 15 Sep 1943' date rests on uboat.net alone. ShipbuildingHistory's date column is the commissioning date (confirmed against sister-hull pages).
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-02
-
[3]Era inference built on: NavSource LSM-142 specification block (Fairbanks Morse diesel plant, no steam); shipbuildinghistory LSM program summary (558 hulls, seven yards, 1944-45); GAO HRD-80-2 (Navy asbestos-use era, see ev-05); NAVSEA ManTech report DNS-686 (shipboard pre-formed asbestos insulation, see ev-04) [other_primary]
- Locator
- NavSource spec block; shipbuildinghistory program summary; GAO HRD-80-2; DNS-686
- Finding type
- asbestos_application
- Finding
- A diesel-powered LSM-1-class landing ship built in 1944 at a U.S. Navy yard sits inside the Navy's documented asbestos-use era. Era-standard asbestos applications aboard a vessel of this type and period were thermal insulation on piping and ducts, machinery and diesel-exhaust lagging, gaskets, valve packing, and electrical insulation, within a 203-foot confined hull volume. As a diesel-direct-drive ship she carried no boilers or steam turbines - the boiler/turbine lagging pathway of steam vessels does not apply.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-01
- Study period
- 1944-1946
- Population
- Charleston Navy Yard construction trades (1944); commissioned crew 1944-46; occupation-service crew to Apr 1946
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or build-record package located for LSM-142. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull. Scuttled 1946 - the inference can never be confirmed or refuted against surviving fabric.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-03
-
[4]Southwest Research Institute (San Antonio, TX) for Naval Sea Systems Command, Final Report DNS-686, 'Removal of Pre-Formed Asbestos Insulation - A Project of the Manufacturing Technology Program,' October 1982, AD-A122 347, contract N00604-80-C-4265 (archived Wayback capture of the DTIC PDF; live DTIC in maintenance/blocking state this session) [other_primary]
- Locator
- DNS-686 / AD-A122 347, transmittal letter (SEA 07032/RNW, Dec 1982), distribution list (Charleston Naval Shipyard Code 380), Introduction section (asbestos insulation on piping, ducts and boilers)
- Finding type
- gov_survey
- Finding
- Government program documentation that pre-formed asbestos insulation aboard naval vessels was a recognized Navy problem requiring an engineered removal system: the report states that 'removal of asbestos insulation on board ship is accomplished by using containments, exhaust ventilation systems, a fine water spray to control dust particles and extensive use of personal protective equipment,' and that eliminating asbestos 'as an insulation material on piping, ducts and boilers' was the driver. Charleston Naval Shipyard (Code 380) appears on the report's distribution list alongside Norfolk, Portsmouth, Mare Island, Long Beach, Philadelphia, and Puget Sound Naval Shipyards.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-01
- Study period
- 1982 (report); asbestos-use era under review
- Population
- Navy shipyard abatement trades (1982 program context)
- Limitations
- Program-level 1982 abatement-technology documentation, decades after this hull's 1944-46 service. Charleston Naval Shipyard appears only on the distribution list - the report does not name this yard as a test site and does not name this hull. Documents shipboard pre-formed asbestos insulation as a fleet-wide reality, not materials aboard LSM-142. Live DTIC endpoint returned an HTML block page / maintenance page 2026-10-01; content verified via the 2025-02-02 Wayback capture.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-04
-
[5]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - spanning this hull's entire construction (1944) and service era (1944-46).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-01
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403 pattern per prior batch sessions) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-05
-
[6]Milestone cross-check: NavSource/Turner extract (launched 15 May 1944; struck 'date unknown') vs uboat.net (launched 18 May 1944; ordered 15 Sep 1943; stricken 25 September 1946) vs navypedia (laid down 4/1944; launched 15.5.1944; stricken 1946) [other_primary]
- Locator
- NavSource 10/14/14142.htm header block; uboat.net ship/12753 data table; navypedia.org LSM table
- Finding type
- historical_record
- Finding
- DISCREPANCY LOGGED: (a) launch date - NavSource and navypedia give 15 May 1944; uboat.net gives 18 May 1944. NavSource date carried. (b) stricken date - NavSource states 'date unknown'; uboat.net gives 25 September 1946; navypedia only '1946.' The stricken field is carried as 'unknown' per the DANFS-extract source with the 25 September 1946 variant unresolved. (c) laid-down date - NavSource 17 April 1944 vs navypedia '4/1944' month-level shorthand; NavSource date carried.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1943-1946 (milestone window)
- Limitations
- Resolves presentation conflicts between secondary compilations, not a material claim. No asbestos content. All three conflicts are carried in gaps until a primary registry entry (NVR file or NHHC record) resolves them.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-06
-
[7]Batch-5944 search ledger (this record): NavSource/Turner DANFS extract; shipbuildinghistory, uboat.net, navypedia compilations; NHHC DANFS (404, no individual LSM-142 page); NVR (pre-1987 disposal excluded); CourtListener API v4 opinion+docket searches; secondary web sweep; DTIC DNS-686 via Wayback; GAO HRD-80-2 product page [other_primary]
- Locator
- search_ledger rows sl-uss-lsm-142-lsm142-01 through -15
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or litigation naming USS LSM-142 was found in the public sources searched (see search_ledger). CourtListener returned zero results for 'LSM-142', 'USS LSM-142', and 'LSM 142' in both opinion and docket indexes (2026-10-01, all six queries via the authenticated fleet-paced helper). Secondary web sweeps surfaced no qualifying case and no marketing-source assertions for this hull. The hull was scuttled at Guam in 1946, so no surviving-fabric survey can exist.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 2026-10-01
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - 1944 construction at a Navy yard inside the documented asbestos-use era is consistent with era-standard materials. Scuttling forecloses any modern survey. Deck logs, builder's specifications, and any scuttling/disposal record are undigitized archival leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-07
-
[8]NARA catalog (catalog.archives.gov) - deck logs (RG 24) and any war-diary/operational records (RG 38) for USS LSM-142 [other_primary]
- Locator
- catalog.archives.gov (JS-rendered, unfetchable 2026-10-01); RG 24 deck-log series, NARA College Park
- Finding type
- historical_record
- Finding
- Archival lead only: NARA's catalog is JS-rendered and could not be queried from this session (API and HTML endpoints returned the SPA shell). WWII-era landing-ship deck logs are held in RG 24 series at NARA; whether LSM-142's logs (Jun 1944 - Sep 1946) are digitized is unverified. Deck logs and any LSM Flotilla Six / Group Sixteen / Division Thirty-Two war diaries or operational reports are the open primary-source leads for her WWII employment and the scuttling disposition.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1944-1946 (record coverage window)
- Limitations
- Access limitation, not a finding: catalog unreachable this session. A deck log documents operations and locations, not materials; even if digitized it is not expected to contain asbestos information. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-142-lsm142-08