Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
-
[1]research packet 597-packet.md (3 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: USS LSM-93 (VERIFIED)
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-lsm-93-lsm93-pkt-597-packet-md
-
[2]NavSource Online, Amphibious Photo Archive, USS LSM-93 hull page (history extract credited to LSM-LSMR Amphibious Forces, Vol. II, Turner Publishing, 1997) [other_primary]
- Locator
- Hull page chronology block (laid down / launched / commissioned lines) and Commanding Officers table
- Finding type
- vessel_history
- Finding
- LSM-93, an LSM-1 class Landing Ship Medium, was laid down 7 September 1944 at Brown Ship Building Co., Houston, Texas; launched 30 September 1944; and commissioned as USS LSM-93 on 25 October 1944 with Lt. Clifford R. Young, USNR, in command.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944
- Population
- Brown Ship Building construction workforce and commissioning crew
- Limitations
- Establishes construction and commissioning identity; the page does not document asbestos, insulation composition, hazmat condition, exposure, or causation. NavSource is a volunteer secondary compilation; its underlying extract is the 1997 Turner Publishing volume. The commissioning officer 'Lt. Clifford R. Young, USNR' is consistent with the official 1 May 1945 organization record's 'Lt. C. R. Young (USNR)'.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-01
-
[3]NavSource Online, Amphibious Photo Archive, USS LSM-93 hull page [other_primary]
- Locator
- Hull page chronology block (decommissioned / struck / transferred / final disposition lines) and Commanding Officers table
- Finding type
- vessel_history
- Finding
- USS LSM-93 was decommissioned 5 April 1946 at Mare Island Navy Yard, Vallejo, California; struck from the Naval Register 5 June 1946; transferred to the Maritime Commission (date unknown) at San Diego, California, for disposal (PDX-225, 27 September 1946); and sold for scrapping 20 February 1948 to Hugo Neu Corp., New York, N.Y. Commanding-officer succession per the page's Commanding Officers table: Lt. Clifford R. Young, USNR (25 October 1944 - December 1945); Lt. Albert B. Durrette, USNR (December 1945 - March 1946); Lt.(jg) Bernard E. Samp, USNR (March 1946 - 5 April 1946).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1946-1948
- Limitations
- Establishes decommissioning, strike date, Maritime Commission transfer, and scrapping sale. Secondary compilations (shipbuildinghistory.com, uboat.net) corroborate the dates and the Hugo Neu 1948 sale but provide no primary documentation; the exact transfer date is unstated ('date unknown' with disposal reference PDX-225, 27 September 1946). No shipbreaking, hazmat, or asbestos record accompanies the disposal entries.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-04
-
[4]Naval History and Heritage Command, United States Pacific Fleet Organization, 1 May 1945 (archived copy - live URL returns 404) [nhhc_danfs]
- Locator
- Archived copy, LSM FLOTILLA EIGHT / LSM GROUP 23 / LSM DIVISION 46 table (document page ~69-70)
- Finding type
- vessel_history
- Finding
- The official NHHC United States Pacific Fleet Organization record of 1 May 1945 lists LSM 93 in LSM FLOTILLA EIGHT (Commander, Comdr. H. Doe), LSM GROUP 23 (ComLSMGrp 23, Lt. Cdr. R. W. Payne, USNR), LSM DIVISION 46, with commanding officer printed as Lt. C. R. Young (USNR).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1945-05-01
- Population
- Ship's company and LSM Flotilla Eight personnel
- Limitations
- Official organization record corroborating the ship's flotilla/group assignment and command as of 1 May 1945. The division assignment (46) and group commander (Payne) differ from the NavSource extract's Division Forty-Five and LCDR W. E. Edwin - discrepancies logged in gaps. Does not provide service narrative or any asbestos, insulation, exposure, or causation finding.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-03
-
[5]NavSource Online, USS LSM-93 specifications block [other_primary]
- Locator
- Specification block (displacement through propulsion lines) and call-sign line
- Finding type
- vessel_history
- Finding
- The hull page lists: displacement 520 t. light / 743 t. landing / 1,095 t. fully loaded; length 203 ft 6 in; beam 34 ft 6 in; speed 13.2 knots (max, at 928 tons displacement); endurance 4,900 miles at 12 knots; complement 5 officers and 54 enlisted with troop accommodations for 2 officers and 46 enlisted; armament one twin bow-mounted 40mm gun and four single 20mm mounts; capacity 5 medium or 3 heavy tanks, or 6 LVTs, or 9 DUKWs; propulsion two Fairbanks Morse model 38D81/8X10 reversible diesel engines with hydraulic clutches, direct drive, 1,440 BHP each at 720 rpm, twin propellers, 2,800 shp; ship's service generators two diesel-drive 100-kW 450-V AC and one diesel-drive 20-kW 120-V DC; international radio call sign NVHC.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944-1946
- Population
- Ship's company and embarked troop capacity
- Limitations
- Supports dimensions, complement, armament, and diesel propulsion only. It does not identify asbestos-containing components or establish that any machinery insulation, gasket, packing, electrical insulation, or deck covering aboard contained asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-05
-
[6]Inference from the ship-specific NavSource diesel specification and the documented source-review negative [other_primary]
- Locator
- NavSource propulsion/specification block; source-review negative documented in search_ledger
- Finding type
- asbestos_application
- Finding
- No ship-specific asbestos survey, product inventory, abatement record, or condition report was located. Because LSM-93 was a World War II U.S. Navy diesel landing ship, machinery or diesel-exhaust insulation, gaskets, packing, electrical insulation, and deck covering are possible class/era application categories, but none is documented aboard this hull. Diesel propulsion means no boiler or steam-turbine lagging pathway.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1944-1948
- Population
- World War II Navy diesel landing-ship construction and operating personnel
- Limitations
- Possible categories only, not a finding that asbestos was installed aboard LSM-93. The cited hull page does not identify asbestos or insulation composition; no quantity, location, condition, exposure, or causation is established.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-06
-
[7]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, confirmed 2026-10-02 - standing access defect since BATCH-01)
- 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 Navy service era (1944-1946).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- 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) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-07
-
[8]Naval History and Heritage Command, 'The Navy's Happy Medium' (Art of Naval Amphibious Operations from WWII exhibit; live URL returns 404 - archived copy cited) [nhhc_danfs]
- Locator
- Archived 2020-10-19 capture, exhibit caption text
- Finding type
- vessel_history
- Finding
- NHHC describes the LSM (Landing Ship, Medium) as the Navy's solution to needing 'a landing ship somewhere between the size and displacement of an LCI (Landing Craft, Infantry) and an LST (Landing Ship, Tank)' - 'the compact and maneuverable LSM' - official class context for the type to which LSM-93 belonged.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1944-1945 (type in service)
- Limitations
- Class-level design context only - does not name LSM-93 and contains no asbestos, material, or exposure information.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-08
-
[9]CourtListener API v4 via /Users/charlesfletcher/devin-prompts/cl-auth-search.py [court_record]
- Locator
- search_ledger sl-uss-lsm-93-lsm93-05; three authenticated queries returned count 0; the exact-name docket query pacing-blocked across three attempts
- Finding type
- historical_record
- Finding
- The authenticated CourtListener sweep found no qualifying asbestos litigation record for USS LSM-93: the exact-name opinion search ('USS LSM-93', type=o), the hull-number opinion search ('LSM-93', type=o), and the hull-number docket search ('LSM-93', type=r) each returned zero results. The exact-name docket query ('USS LSM-93', type=r) was repeatedly refused by the fleet-wide pacing gate during this session and is logged as blocked rather than as no result.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 2026-10-02
- Limitations
- Three of four planned queries completed with zero results (opinions for both search forms; dockets for the hull-number form). The exact-name docket query was blocked by fleet pacing, so that corner of the index is unexamined this session. A completed query returning zero is a search result, not proof that no unindexed or non-text-linked case exists; the blocked query is an access gap, not a negative.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-09
-
[10]Source-review negative across the sources listed in the search ledger [other_primary]
- Locator
- search_ledger rows sl-uss-lsm-93-lsm93-01 through -10
- Finding type
- historical_record
- Finding
- No ship-specific asbestos documentation was located in the public sources reviewed: the live NavSource hull page, the official NHHC 1 May 1945 Pacific Fleet organization record, and official-domain web results contain no asbestos survey, insulation-material statement, abatement record, hazmat disclosure, or qualifying asbestos litigation record for LSM-93.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 2026-10-02
- Limitations
- A negative public-source finding is not proof that asbestos was absent. Non-digitized Navy deck logs (RG 24), builder records, Maritime Commission disposal files (PDX-225 series), and scrapping records may contain additional evidence; asbestos documentation therefore remains class_or_era.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-10
-
[11]NavSource Online, Amphibious Photo Archive, USS LSM-93 hull page [other_primary]
- Locator
- Hull page: Asiatic-Pacific Theater assignment lines, awards ribbon list, Navy Occupation Service period lines
- Finding type
- vessel_history
- Finding
- During World War II, USS LSM-93 was assigned to the Asiatic-Pacific Theater. NavSource's extract assigns her to LSM Flotilla Eight (CDR H. Doe USN), LSM Group Twenty-Three (LCDR W. E. Edwin, USNR), LSM Division Forty-Five. Awards listed are the American Campaign Medal, Asiatic-Pacific Campaign Medal, World War II Victory Medal, and Navy Occupation Service Medal (Asia clasp); no battle stars and no campaign-participation lines are listed. Following the war she performed Navy Occupation service in the Far East from 2 September to 9 November 1945.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944-1945
- Population
- Ship's company during occupation operations
- Limitations
- Establishes theater assignment, awards, and occupation-service period. The unit-assignment detail partially conflicts with the official 1 May 1945 organization record, which lists LSM 93 in LSM Division 46 (not 45) under Group 23 commanded by Lt. Cdr. R. W. Payne (not Edwin). Official record is controlling for the 1 May 1945 assignment; discrepancy logged in gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-93-lsm93-02