Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 522-packet.md (3 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-r-412-lsmr412-pkt-522-packet-md
-
[2]National Archives, RG 181, Ship Commissioning Files, Sixth Naval District at Charleston, South Carolina [other_primary]
- Locator
- RG 181 ship commissioning files table, box 9, Landing Ship, Medium, LSM-412, dated 5/23/1945
- Finding type
- historical_record
- Finding
- The National Archives finding aid lists a Landing Ship, Medium entry for LSM-412 with the date 23 May 1945 in the Charleston Navy Yard commissioning-file series.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- 1945
- Population
- Vessel identity and Navy commissioning record
- Limitations
- Finding-aid metadata, not the underlying commissioning file. The table leaves the ship-name field blank; the separate NARA deck-log index cross-references LSM-412 to Des Plaines River (LFR/LSM/LSMR-412). This finding aid does not establish construction details or asbestos aboard the hull.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-412-lsmr412-01
-
[3]National Archives, Ship Plan Index, Des Plaines River, LSMR-412, Hull Series of Ship Engineering Drawings, NAID 153715351 [other_primary]
- Locator
- Ship Plan Index, Des Plaines River / LSMR-412 row; NAID 153715351
- Finding type
- historical_record
- Finding
- The National Archives Ship Plan Index lists Des Plaines River, LSMR-412, in the Hull Series of Ship Engineering Drawings and identifies the archival series item as NAID 153715351.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- Undated ship-plan series
- Population
- Hull-specific engineering records
- Limitations
- This is a finding-aid/index entry only; the engineering drawings were not retrieved or reviewed. It identifies the named hull and a technical-record lead, but gives no material inventory, asbestos content, or exposure information.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-412-lsmr412-02
-
[4]National Archives, Navy Deck Logs Available in the National Archives Catalog [other_primary]
- Locator
- Des Plaines River (LFR/LSM/LSMR-412) entry and LSM-412 cross-reference
- Finding type
- vessel_history
- Finding
- The National Archives deck-log index identifies Des Plaines River as LFR/LSM/LSMR-412 and cross-references LSM-412 to that entry. It lists commission in May 1945, decommission in May 1950, recommission in August 1950, and decommission in September 1955.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- 1945-1955
- Population
- Vessel service chronology
- Limitations
- The index gives month-level dates for the later decommissioning and recommissioning events, not exact days. It lists which deck logs are available in the catalog; the index entry itself is not a logbook and does not describe the ship's operations or onboard materials.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-412-lsmr412-03
-
[5]U.S. General Accounting Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct. 18, 1979) [gao]
- Locator
- GAO HRD-80-2 product-page highlights, scope and Navy insulation-removal policy
- Finding type
- asbestos_application
- Finding
- GAO reviewed Navy asbestos use in ships and worker-protection and insulation-removal policies at Long Beach and Norfolk Naval Shipyards. This establishes Navy-wide shipboard asbestos-insulation and policy context for the period, not asbestos aboard LSM(R)-412.
- Verification
- partial
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-30
- Study period
- 1975-1979 policy context; report published 1979
- Population
- Navy shipyard workers and Navy ship-insulation program
- Limitations
- Navy-wide program evidence only. It neither names this hull nor documents its equipment, materials, asbestos quantity, remaining material, or anyone's exposure. Direct automated access to the live GAO product page returned HTTP 403; the current GAO search result exposes the report summary. No ship-specific inference is made.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-412-lsmr412-04
-
[6]Search of accessible National Archives, Navy, and government asbestos-record sources for LSM(R)-412 / LSMR-412 / Des Plaines River [other_primary]
- Locator
- Search ledger entries sl-uss-lsm-r-412-lsmr412-01 through -08
- Finding type
- asbestos_application
- Finding
- No ship-specific asbestos survey, abatement record, hazmat disclosure, asbestos inventory, or other hull-specific asbestos record was located in the accessible sources reviewed. Asbestos aboard this hull remains unknown; the search does not establish that asbestos was absent.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- Public records reviewed through 2026-09-30
- Population
- Hull-specific asbestos documentation
- Limitations
- A limited negative finding only. Firecrawl search was unavailable due to keyless quota exhaustion; NHHC candidate pages for the LSMR-412 photograph and Korean War chronology returned HTTP 404 on live checks; underlying NARA commissioning and ship-plan records were not retrieved; technical drawings and non-digitized records were not reviewed. GAO evidence is program-level only.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-412-lsmr412-05