Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
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[1]NavSource Online: Amphibious Photo Archive, USS LSM-50 (10/14/14050) - construction milestones, campaign table, award ribbon bar, commanding officers, specifications, photographs. History extract credited to 'LSM-LSMR Amphibious Forces, Vol. II' (Turner Publishing, 1997) [other_primary]
- Locator
- NavSource 10/14/14050.htm header block, award ribbons, campaign table, history narrative, specifications block, CO table, photo captions
- Finding type
- vessel_history
- Finding
- Documented for this hull: LSM-1 class; laid down 14 June 1944 at Brown Shipbuilding Co., Houston, TX; launched 7 July 1944; commissioned USS LSM-50 on 9 August 1944, Lt. John C. Rogers, Jr., USNR in command. Asiatic-Pacific campaigns: Luzon operation (Lingayen Gulf landing 9 January 1945); consolidation of the Southern Philippines (Palawan Islands landings 28 February 1945; Visayan Islands landings 26-28 March and 2 April 1945); Borneo operation (Brunei Bay 10-14 June 1945). Three battle stars. Ribbon bar: American Campaign Medal, Asiatic-Pacific Campaign Medal (3), WWII Victory Medal, Philippine Presidential Unit Citation, Philippine Liberation Medal (2). Decommissioned 19 April 1946; struck from the Naval Register, date unknown; sold 14 August 1947 to Indian River Lines Inc., Wilmington, DE, for conversion to a barge; final disposition unknown. Commanding officers: Lt. J. C. Rogers, Jr., USNR (9 Aug 1944 - Dec 1945); Lt.(jg) L. A. Estabrook, USNR (Dec 1945 - 19 Apr 1946). Photos: beached with LSM-259 and LSM-26 probably in the Philippines (undated); beached with LST-595 and LSM-128 at Labuan Island, Borneo, 10 June 1945 (AWM photo OG2909A).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944-1947
- Population
- Brown Shipbuilding construction trades (1944); crew (Aug 1944 - Apr 1946); embarked troops on multiple amphibious lifts
- Limitations
- NavSource is a volunteer secondary compilation sourced here from the Turner Publishing veterans'-history volume, not a primary registry - milestone dates track official sources where independently checked (corroborated by uboat.net, navypedia, and shipbuildinghistory this session). Contains no asbestos or material content. 'Struck date unknown' conflicts with uboat.net's 3 July 1946 - carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-01
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[2]NARA, Record Group 38 (Office of the Chief of Naval Operations), Series: World War II War Diaries, Other Operational Records and Histories - ship-titled file units for USS LSM-50: action report 'Rep of opers in the invasion of Lingayen Gulf, Luzon Island, Philippines, 1/9-15/45' (NAID 83524519, 17 images) and action report 'Report of operations in the assault landings in the Brunei Bay Area, Borneo, 6/10-12/45' (NAID 77501760, 8 images); parent-unit series COM LSM FLOT 7 monthly war diaries Aug 1944 - Dec 1945 (sixteen file units incl. NAIDs 78653167, 139862516, 139910633, 139961043, 139994349, 140025964, 101715310, 101772241, 77489112, 77528041, 77574434, 77583888, 139827572, 633456030, 78671791, 78699967) [other_primary]
- Locator
- catalog.archives.gov search '"LSM-50"' (133 file units incl. parent-unit records); detail pages NAID 83524519 (Lingayen report, 17 images), NAID 77501760 (Brunei report, 8 images); COM LSM FLOT 7 search - sixteen monthly war-diary units
- Finding type
- historical_record
- Finding
- Digitized ship-specific operational records exist: two ship-titled action reports covering the Lingayen Gulf invasion (9-15 January 1945) and the Brunei Bay assault landings (10-12 June 1945) - corroborating the NavSource/Turner campaign list at the primary-record level. The parent-unit record also survives: COM LSM FLOT 7 monthly war diaries run August 1944 through December 1945, spanning this hull's entire operational career under LSM Flotilla Seven (COMLSMFLOT 7, T/Cdr. W. E. Verge USN, per the Oboe VI task organization).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944-1945
- Population
- All hands, USS LSM-50 (Lingayen report covers 1/9-15/45; Brunei report covers 6/10-12/45; FLOT 7 diaries cover Aug 1944 - Dec 1945)
- Limitations
- Archival lead only: action reports and war diaries document operations, positions, and command relations - they contain no asbestos, insulation, or material-content statements. Catalog titles verified this session; page-level contents not read (scanned images, no transcription). No monthly war diaries titled to USS LSM-50 itself and no muster-roll file unit for this hull surfaced in the digitized catalog search (sister-hull muster units exist, e.g., LSM-259 NAID 126506506).
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-02
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[3]uboat.net Allied Warships, USS LSM 50 (ship/12661) - Brown Shipbuilding Co., ordered 15 September 1943, milestones, 'Stricken 3 July 1946', sold 14 August 1947; transcribed task organizations: Operation Victor II (Cebu, 24-28 March 1945) Task Unit 78.2.4 LSM unit and return echelon TU 78.2.16; Operation Oboe VI (Brunei, 10 June 1945) Task Unit 78.1.14 LSM unit under T/Cdr. W. E. Verge USN (COMLSMFLOT 7) and 'Brown' Assault Unit TU 78.1.16 [other_primary]
- Locator
- uboat.net ship/12661 data table and 'Notable events' Victor II and Oboe VI task-organization transcriptions (TU 78.2.4, TU 78.2.16, TU 78.1.14, TU 78.1.16)
- Finding type
- vessel_history
- Finding
- Independent secondary compilation corroborates milestones (ordered 15 Sep 1943; laid down 14 Jun 1944; launched 7 Jul 1944; commissioned 9 Aug 1944; decommissioned 19 Apr 1946; sold 14 Aug 1947) and is the sole source for a stricken date of 3 July 1946 (NavSource: 'date unknown'). Documents unit assignment: at Operation Victor II (Cebu), USS LSM-50 (Lt. J. C. Rogers USNR) was in the LSM unit TU 78.2.4 under COMLSMGR 24 and departed with return echelon TU 78.2.16 on 27 March; at Operation Oboe VI (Brunei Bay, 10 June 1945) she was in the LSM unit TU 78.1.14 under T/Cdr. W. E. Verge USN (COMLSMFLOT 7) and in the 'Brown' Assault Unit TU 78.1.16 landing at Labuan Island.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944-1947
- Population
- Crew (1944-1946); Australian 9th Division troops embarked for Labuan (Jun 1945)
- Limitations
- uboat.net is a secondary compilation; the task organizations are transcribed from operational documents (sourced on-page to the COMTASKGR 74.3/78.2 Cebu action reports and the CTG 78.1 Oboe VI report) and are consistent with the ship's own NARA Brunei Bay report. 'Ordered 15 Sep 1943' is uncorroborated by a primary contract document; the 3 July 1946 stricken date conflicts with NavSource's 'date unknown' - carried in gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-03
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[4]Australian War Memorial collection item OG2909A - photograph, Labuan Island, Borneo, 10 June 1945: 'A general view of LSTs (landing ship, tank), No. 50, 128, 595, which carried the invasion forces, on the beach on Labuan Island.' [other_primary]
- Locator
- awm.gov.au/collection/OG2909A (verified live 2026-10-02); NavSource 10/14/14050.htm photo table
- Finding type
- historical_record
- Finding
- Australian official photographic record of the Oboe VI landing at Labuan Island on 10 June 1945 - the operation in which LSM-50 carried elements of the Australian 9th Division to Brunei Bay. The AWM caption records hull numbers 50, 128, and 595 beached after disembarking invasion forces; NavSource identifies the three ships by type as USS LSM-50, USS LSM-128, and USS LST-595.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1945-06-10
- Population
- Australian 9th Division embarkation; LSM-50 crew
- Limitations
- The AWM caption numbers the hulls but mislabels the type - it calls all three 'LSTs' when 50 and 128 are LSMs and only 595 is an LST; the type-correct identification is NavSource's caption attribution. Corroborates the Oboe VI context documented by the ship's own Brunei Bay action report (NAID 77501760). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-04
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[5]NHHC / Navy Department Library, 'Seventh Amphibious Force - Command History 1945' (transcribed command history) [nhhc_danfs]
- Locator
- 7th Amphibious Force Command History 1945, operations narrative (Lingayen, Southern Philippines/Cebu, Brunei Bay sections)
- Finding type
- vessel_history
- Finding
- Primary Navy command history documents the force-level operations this hull's campaign record places it in: the Lingayen Gulf landing of 9 January 1945 (Seventh Amphibious Force landing I Corps on the northern beaches); the consolidation operations in the Southern Philippines including the Cebu landing of 26 March 1945 under Acting Commander Amphibious Group 8 (Capt. A. T. Sprague); and the second Borneo landing at Brunei Bay on 10 June 1945 landing a brigade group of the 9th Australian Division on Labuan Island.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-02
- Study period
- 1944-1945
- Population
- Seventh Amphibious Force crews, 1944-45
- Limitations
- Force-level narrative - does not name LSM-50 or any individual LSM hull in the transcribed text; corroborates the operational setting of the ship-titled NARA reports and NavSource campaign list, not this hull's presence in each event. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-05
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[6]navypedia.org US LSM hull table ('LSM50 | Brown SB, Houston | 1944 | 1944 | 8.1944 | stricken 1946'); shipbuildinghistory.com LSM table ('LSM 50 | Brown SB | Houston TX | 9-Aug-44 | Sold to Indian River Lines 1947, converted to barge') [other_primary]
- Locator
- navypedia.org/ships/usa/us_aws_lsm.htm hull table; shipbuildinghistory.com/smallships/lsm.htm hull table (both verified live 2026-10-02)
- Finding type
- vessel_history
- Finding
- Two further independent secondary compilations corroborate the milestone and disposition record: navypedia lists LSM50 built by Brown SB Houston, completed 8.1944, stricken 1946; Shipbuilding History lists LSM 50 at Brown SB Houston, delivered 9-Aug-44, 'Sold to Indian River Lines 1947, converted to barge.' Neither source documents a post-sale barge name, operator detail beyond Indian River Lines Inc., or final fate.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944-1947
- Limitations
- Secondary compilations agreeing with NavSource; navypedia gives only year-level dates vs NavSource's exact dates. No source documents the barge's name, service, or disposal after the 1947 sale. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-06
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[7]Era inference built on: NavSource specifications (2 x Fairbanks Morse 38D81/8X10 reversible diesels, direct drive, twin screws; no steam plant); Wikipedia LSM-1-class article (558 ships built 1944-45, Fairbanks-Morse or GM Cleveland diesels by builder); GAO HRD-80-2 era documentation (ev-08) [other_primary]
- Locator
- NavSource specifications block; Wikipedia 'LSM-1-class landing ship medium' general characteristics (cross-check only, not cited as record source)
- Finding type
- asbestos_application
- Finding
- A diesel-powered amphibious transport built June - August 1944 at a commercial wartime yard sits inside the Navy's documented asbestos-use era; era-standard applications aboard an LSM-1-class hull of this period were thermal and machinery insulation, engine and exhaust lagging, gaskets, valve packing, electrical insulation, fireproofing and deck coverings, and brake linings on winches and handling gear. With a Fairbanks-Morse diesel direct-drive plant she carried no steam system - the boiler/turbine lagging pathway of steam vessels does not apply.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1944-1947 (USN career); barge service era undated
- Population
- Brown Shipbuilding construction trades (1944); crew (Aug 1944 - Apr 1946); barge-conversion yard trades and any commercial crews (1947 onward)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material schedule, or construction work package located for LSM-50. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-07
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[8]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (published Oct 18, 1979; released Oct 22, 1979) [gao]
- Locator
- GAO product page HRD-80-2, Highlights section (verified live via firecrawl 2026-10-02; direct curl returns 403)
- Finding type
- gov_survey
- Finding
- GAO reviewed the Navy's efforts to protect workers from asbestos exposure (fieldwork at Long Beach and Norfolk Naval Shipyards) covering the use of asbestos in Navy ships, removal costs, and compensation programs; the Navy's 1975 policy removed and replaced with nonasbestos materials only insulation that was damaged or had to be removed for necessary repairs, modified in 1979 to add selective replacement in high-maintenance areas. This documents the Navy's asbestos-insulation era spanning this hull's 1944 construction and U.S. service.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1979 (report); program era 1940s-1970s
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full-text PDF not retrieved this session (gao.gov blocks automated fetches; product-page Highlights used - the standing gao.gov access gap noted in Batch 01).
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-08
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[9]Batch-6317 search ledger (this record): CourtListener API v4 authenticated searches via cl-auth-search.py - quoted 'LSM-50' type=o (1 hit, name collision), quoted 'LSM 50' type=o (1 hit, same name collision); the hit is State ex rel. Rohrs v. Germann, 2013 Ohio 2497 (Ohio Ct. App., 3d Dist., No. 7-12-21). Quoted 'LSM-50' type=r docket search returned 4 dockets, all reviewed, all name collisions (Winn-Dixie bankruptcy M.D. Fla. 2005; Rivera-Cortes v. Airport Catering D.P.R. 1998; Gaines v. District Council 1707 S.D.N.Y. 2008; LSM Technologies v. Sy-Klone M.D. Fla. 2022) [court_record]
- Locator
- search_ledger rows sl-uss-lsm-50-lsm50-02, -03, -04
- Finding type
- litigation_documented
- Finding
- No qualifying asbestos litigation located: the CourtListener opinion index contains exactly one quoted-form hit for this hull name, State ex rel. Rohrs v. Germann (Ohio Ct. App. 2013), a mandamus action arising from a Henry County drainage project in which 'LSM 50' is a watery cement-slurry fill material (low-strength mortar) used to plug decommissioned culvert pipes - a name collision involving neither the ship nor asbestos. The RECAP docket index holds four 'LSM-50' token hits, all reviewed and all name collisions: a Winn-Dixie Chapter 11 bankruptcy (Bankr. M.D. Fla. 2005), a Puerto Rico labor case (1998), an ERISA benefits action (S.D.N.Y. 2008), and a contract suit by LSM Technologies Pty Ltd (M.D. Fla. 2022, 'LSM' corporate acronym). Secondary web sweeps surfaced no qualifying case - only law-firm marketing pages for LSM-type ships generically (excluded by source policy).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 2026-10-02
- Limitations
- Absence of a located public docket does not prove no claim was ever filed - PACER/state-court records are not fully indexed by CourtListener, and short-lived numbered amphibious hulls are thinly litigated generally. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-09
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[10]Batch-6317 search ledger (this record): NHHC DANFS hull entry (404 on live site); NVR ship detail (no entry - pre-1987 disposition, per NVR's own page statement); NARA catalog (ship-titled action reports and the COM LSM FLOT 7 parent series located; no ship-titled war diaries or muster rolls); NavSource; uboat.net/navypedia/shipbuildinghistory corroboration; NHHC Seventh Amphibious Force Command History 1945; AWM collection; GAO product page; secondary web sweep [other_primary]
- Locator
- search_ledger rows sl-uss-lsm-50-lsm50-01 through -12
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, ship's material schedule, or court record naming USS LSM-50 was found in the public sources searched (see search_ledger). No DANFS entry exists for this hull. The hull served under 21 months in U.S. commission, all of it in the Asiatic-Pacific and occupation-era theater, and was sold out of service in August 1947 - predating the Navy's 1975 asbestos-management policy, so no modern survey or abatement record could be expected to exist.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 2026-10-02
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - construction-era asbestos use for a 1944 amphibious is era-consistent, and the post-1947 commercial barge record is undocumented (fate unknown). NARA holds further undigitized leads (RG 19 Bureau of Ships records, RG 24 deck logs). Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-50-lsm50-10