Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
-
[1]research packet 521-packet.md (12 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-406-lsmr406-pkt-521-packet-md
-
[2]National Archives, RG 181 Naval Districts and Shore Establishments, Ship Commissioning Files, Sixth Naval District at Charleston, South Carolina - container list [other_primary]
- Locator
- archives.gov/atlanta/finding-aids/rg181-charleston-2694599.html, table row 'Landing Ship, Medium | LSM-406 | | 5/2/1945'
- Finding type
- historical_record
- Finding
- NARA's container list includes an entry for Landing Ship, Medium LSM-406 dated 2 May 1945 in the Sixth Naval District at Charleston ship-commissioning files. This is an archival lead for the hull's Charleston commissioning-period administrative record and corroborates the commissioning date.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- 1945-05-02
- Limitations
- The online finding aid is a container list, not the underlying commissioning file. It does not state the particular action documented by the date, describe construction materials, or document asbestos. Although the vessel was commonly styled LSM(R)-406, the NARA list displays LSM-406.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-406-lsmr406-01
-
[3]Naval History and Heritage Command, NH 95684, San Diego Naval Base, California [nhhc_danfs]
- Locator
- NHHC image page NH 95684, caption
- Finding type
- historical_record
- Finding
- NHHC's caption for photograph NH 95684 places USS LSMR-406 and USS LCS-116 in floating drydocks at the San Diego repair base while twenty Fletcher-class destroyers were undergoing inactivation, early in 1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- early 1946
- Population
- Ship's company and any San Diego repair-base workers present during early-1946 inactivation
- Limitations
- The photograph establishes hull presence in floating drydocks during the stated period, not the work performed, materials handled, or asbestos aboard. It is not an overhaul record or exposure record.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-406-lsmr406-02
-
[4]NavSource Online, Amphibious Photo Archive, USS Canadian River (LSMR-406), page 10/14/14406 - milestone and specification blocks; live page verified 2026-09-30 [other_primary]
- Locator
- https://www.navsource.net/archives/10/14/14406.htm, LSM(R)-401 Class Landing Ship Medium (Rocket) milestones and Specifications blocks
- Finding type
- vessel_history
- Finding
- NavSource records this hull as laid down 18 January 1945 at the U.S. Naval Shipyard, Charleston, South Carolina; launched 6 February 1945; commissioned USS LSM(R)-406 on 2 May 1945 with LT Donald S. Voorhees, USNR, in command; decommissioned 10 February 1947 at San Diego; named Canadian River LSMR-406 on 1 October 1955; struck in 1960; and sold 21 July 1960 to Bay City Transportation Co. for barge conversion, with scrapping recorded in 1989-1990. Its specification block gives five officers and 133 enlisted; two General Motors 16-287A non-reversing diesel engines, direct drive, 1,440 BHP each at 720 rpm; diesel-driven service generators; twin screws; and 2,800 shp.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- 1945-1990
- Population
- Charleston Navy Yard construction trades (1945); ship's company, 5 officers and 133 enlisted (per source spec block); San Diego inactivation workers (1946); commercial-conversion and scrapping workers (1960; 1989-90)
- Limitations
- NavSource is a specialist photographic archive and attributes its history extract to LSM-LSMR Amphibious Forces, Vol. II (Turner Publishing, 1997), rather than a government registry. It is ship-specific history and specifications, not an asbestos or material record. The commercial disposition details have not been corroborated by a reviewed government sale file.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-406-lsmr406-03
-
[5]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (18 October 1979) [gao]
- Locator
- GAO product page HRD-80-2, Highlights
- Finding type
- gov_survey
- Finding
- GAO reviewed the Navy's efforts to protect workers from asbestos exposure, including the use of asbestos in Navy ships, at Long Beach and Norfolk Naval Shipyards. Its product page describes the Navy's 1975 policy of replacing asbestos insulation only when damaged or removed for repairs, modified in 1979 to include selective replacement in high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-30
- Study period
- 1975-1979 policy discussion; report published 1979
- Population
- Navy shipyard workers and shipboard personnel covered by the program review
- Limitations
- This is a Navy-program record, not a record of LSM(R)-406, Charleston Navy Yard, or San Diego. It does not establish asbestos aboard this hull, an individual exposure, a quantity, or a repair event. Direct fetch of the GAO page returned HTTP 403; the live GAO search result and product-page metadata were reviewed.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-406-lsmr406-04
-
[6]Batch-5853 search ledger: NARA RG 181 commissioning-file finding aid; NHHC NH 95684; live NavSource vessel page; GAO HRD-80-2 product page; NHHC/DANFS and NVR searches; required authenticated CourtListener helper; Firecrawl official-source search [other_primary]
- Locator
- search_ledger rows sl-uss-lsm-r-406-lsmr406-01 through -09
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos documentation was located in the sources searched: no asbestos survey, abatement contract, hazmat disclosure, material list, or verified asbestos litigation naming USS LSM(R)-406 / Canadian River / LSMR-406. CourtListener is unresolved, not a no-result: the required authenticated helper began the exact-name opinion query but no response was received before the session command ended, so the exact-name and hull-number opinion and docket searches were not completed. Firecrawl was quota-blocked before its official-source search could run.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-30
- Study period
- 2026-09-30
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard. CourtListener is a material open research gap, not a negative search result; NARA underlying commissioning files, deck logs, repair records, sale/conversion records, and any survey or abatement files were not reviewed.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-r-406-lsmr406-05