Evidence
9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).
-
[1]research packet 744-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-mahnomen-county-lst912-pkt-744-packet-md
-
[2]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, Mahnomen County entry (archived official page) [nhhc_danfs]
- Locator
- Archived DANFS entry, final Vietnam-service paragraph
- Finding type
- vessel_history
- Finding
- The official DANFS entry states that Mahnomen County grounded at Chu Lai, South Vietnam, on 30 December 1966 in typhoon weather; January 1967 refloating efforts failed; she was struck from the Navy List on 31 January 1967; and, after salvageable material was stripped, her hull was demolished by the Navy Support Detachment at Chu Lai.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1966-1967
- Population
- Ship's company, Navy Support Detachment, and salvage personnel
- Limitations
- The direct NHHC page returned HTTP 404 during this research; the cited Wayback capture is explicitly archived. The description of stripping salvageable materials does not identify the materials, does not say asbestos was present or removed, and does not establish individual exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-03
-
[3]NavSource Online: Amphibious Photo Archive, USS Mahnomen County (LST-912) page [museum_official]
- Locator
- Live page, history bullets and awards line
- Finding type
- historical_record
- Finding
- NavSource's live hull page identifies USS Mahnomen County as ex-USS LST-912, gives the construction and commission dates, records the 1955 naming, 1963 recommissioning, 1966 Chu Lai grounding, 2 February 1967 decommissioning, demolition by the Navy Support Detachment at Chu Lai, 31 July 1967 Naval Register striking, and four World War II and two Vietnam campaign stars.
- Verification
- disputed
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1967
- Population
- U.S. Navy personnel and Chu Lai salvage personnel
- Limitations
- NavSource's live page was verified at research time. Its dates for the final decommissioning and Naval Register striking differ from archived official DANFS; the official DANFS dates are used in record fields and this conflict is disclosed as a gap. Neither source documents asbestos or individual exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-04
-
[4]NavSource Online: Amphibious Photo Archive, USS Mahnomen County (LST-912) specifications [museum_official]
- Locator
- Live page, Specifications section
- Finding type
- asbestos_application
- Finding
- Class/era context only: the documented LST-542 diesel propulsion design is insufficient to identify asbestos aboard USS Mahnomen County. No retrieved authoritative source names an asbestos-containing product or application on this hull.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1944-1967
- Population
- Construction trades, engineering crew, deck machinery operators, and later maintenance workers
- Limitations
- Diesel propulsion and construction era cannot establish asbestos presence on this hull. This is not a finding that any material was installed, retained, removed, or disturbed aboard USS Mahnomen County and does not establish exposure or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-06
-
[5]National Archives and Records Administration, Special List No. 44, by Ship Numbers [other_primary]
- Locator
- PDF text page 61; LST-912 rows
- Finding type
- historical_record
- Finding
- NARA Special List No. 44, by ship number, lists LST-912 twice with logbook coverage from 21 May 1944 through 31 December 1945, providing an archival lead for the ship's commissioning and World War II operations.
- 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 underlying logbooks. No logbook was retrieved; this row makes no asbestos or exposure finding.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-07
-
[6]Batch-7455 source review and search ledger: archived NHHC DANFS, NavSource, NARA Special List No. 44, NHHC image/archive sources, and authenticated CourtListener helper attempt [other_primary]
- Locator
- search_ledger rows sl-uss-mahnomen-county-lst912-01 through -08
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record was located in the public sources searched: archived official DANFS, live NavSource, NARA's logbook index, and official NHHC image and archive-search results contain no asbestos survey, abatement contract, hazmat disclosure, material schedule, or asbestos finding for this hull. The required CourtListener exact-name and exact-hull opinion and docket searches were attempted through the authenticated helper but did not return results because of fleet pacing stand-down and a multi-hour quota wait; this is not a no-result finding.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- This negative finding concerns records located, not asbestos absence. CourtListener coverage is incomplete because the exact-name and hull-number requests did not return results; no raw, anonymous, v3, or unpaced request was made, and no litigation conclusion is drawn.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-08
-
[7]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, Mahnomen County entry (archived official page) [nhhc_danfs]
- Locator
- Archived DANFS entry, opening paragraph
- Finding type
- vessel_history
- Finding
- The official DANFS entry states that Mahnomen County was laid down as LST-912 at Bethlehem-Hingham Shipyard, Inc., Hingham, Massachusetts, on 5 February 1944; launched on 22 April 1944; sponsored by Mrs. Hazel B. Leppe; and commissioned on 21 May 1944 under Lt. Lloyd R. White.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944
- Population
- Bethlehem-Hingham construction workers and initial Navy crew
- Limitations
- The direct NHHC page returned HTTP 404 during this research; the cited Wayback capture is explicitly archived. This row establishes construction milestones and identity, not asbestos content, quantity, condition, exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-01
-
[8]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, Mahnomen County entry (archived official page) [nhhc_danfs]
- Locator
- Archived DANFS entry, World War II, postwar, reserve, and recommissioning paragraphs
- Finding type
- vessel_history
- Finding
- The official DANFS entry records LST-912's World War II Asiatic-Pacific operations, postwar occupation service, 1 July 1955 redesignation as Mahnomen County, 25 August 1955 decommissioning into the Atlantic Reserve Fleet, and 27 March 1963 recommissioning at Philadelphia.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1963
- Population
- U.S. Navy crew and supporting shore personnel
- Limitations
- The direct NHHC page returned HTTP 404 during this research; the cited Wayback capture is explicitly archived. This row documents service and administrative status only; it does not identify asbestos-containing materials or establish exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-02
-
[9]NavSource Online: Amphibious Photo Archive, USS Mahnomen County (LST-912) specifications [museum_official]
- Locator
- Live page, Specifications section
- Finding type
- historical_record
- Finding
- NavSource's class specifications identify the hull as an LST-542-class tank landing ship with two General Motors 12-567A 900-hp diesel engines, Falk reduction gears, two propellers, 1,700 shaft horsepower, three diesel-drive 100-kW 230-V DC ship-service generators, and a complement of 13 officers and 104 enlisted.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1967
- Population
- Engineering crew and construction/maintenance workers
- Limitations
- The page presents class/design specifications with the hull history. It establishes diesel propulsion and the stated complement, but not asbestos content of any insulation, gasket, packing, cable, covering, or friction material.
- Atlas source
- true
- Evidence ID
- ev-uss-mahnomen-county-lst912-05