USS Endymion (ARL-9)
- Name
- USS Endymion
- Hull designation
- ARL-9
- Vessel class
- Achelous
- Evidence tier
- Tier 2
- Evidence entries
- 11
- Record ID
uss-endymion-arl9- Dataset version
- 2026.10.12-rc.1
- Canonical URL
- https://asbestosatlas.org/ships/uss-endymion-arl9
Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
-
[1]research packet bk-packet.md (5 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-endymion-arl9-pkt-bk-packet-md
-
[2]DANFS entry 'Endymion (ARL-9)', NHHC (published 2016-06-23) - via Wayback capture 2023-05-08; live NHHC URL returns 404 as of 2026-09-26 [nhhc_danfs]
- Locator
- DANFS full entry text; Wayback https://web.archive.org/web/20230508100925/https://www.history.navy.mil/research/histories/ship-histories/danfs/e/endymion.html
- Finding type
- vessel_history
- Finding
- DANFS (NHHC): Endymion laid down as LST-513; reclassified ARL-9 on 1943-11-03; launched 1943-12-17, sponsored by Mrs. Mary C. Hanley; commissioned 1944-05-09, Lieutenant A. Edgell in command. WWII service: shakedown Chesapeake Bay; Guantanamo Bay; convoy toward Panama Canal then independently to San Diego; Pearl Harbor; deployed with TG 32.6 to Guadalcanal, arrived 1944-08-26; repairs at Guadalcanal and Russell Islands; joined task group preparing for Palau invasion; active at Kossol Passage 1944-10-03 to 1945-02-25; convoy to Leyte 1945-02-25, one month of diving operations and landing-craft repair; proceeded with Task Unit 51.14.3 for Okinawa invasion, repair service to battle- and weather-damaged destroyers, landing craft, and patrol vessels; 1945-04-28 shrapnel-burst damage, 15 crew wounded; 1945-05-10 shifted anchorage to Buckner Bay, frequent suicide-plane attacks, uninterrupted repair service; 1945-06-07 underway with Task Unit 31.29.29 for Saipan thence Pearl Harbor; 1945-06-21 torpedoed, 11 wounded, steering-gear damage, subchaser dispatched to bring her to Eniwetok for temporary repairs, continued to Pearl Harbor. Postwar: overhaul at Astoria, OR beginning 1945-11-09; decommissioned 1946-11-30 and placed in Pacific Reserve Fleet.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 1943-1946
- Limitations
- Authoritative Navy history establishing identity, construction, conversion designation, service, and decommissioning. Contains no asbestos or insulation-material statement; supports no asbestos claim. Entry text is stale post-decommissioning ('placed in the Pacific Reserve Fleet where she remains' - written before the 1972 strike and 1973 sale); omits laid-down date, builder, and stricken date - supplied by NavSource/shipscribe rows. Decommissioning date here (1946-11-30) conflicts with NavSource (1946-12-04) and shipscribe (1946-11-29) - see correction row.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-01
-
[3]NavSource Naval History, Amphibious Photo Archive - USS Endymion (ARL-9) page (archives/10/19/1909.htm, maintained by Gary P. Priolo, last updated 2024-12-06) [other_primary]
- Locator
- Page header data block, campaign table, specifications block, CO table, photo captions
- Finding type
- vessel_history
- Finding
- NavSource Amphibious Photo Archive page for USS Endymion (ARL-9): laid down 1943-08-23 as LST-513 at Chicago Bridge and Iron Co., Seneca, IL; reclassified ARL 1943-11-03; launched 1943-12-17; commissioned 1944-05-09, LT Albion Edgell USNR in command. Campaigns: Western Caroline Islands operation - capture and occupation of southern Palau Islands 1944-10-06/14; Okinawa Gunto operation - assault and occupation of Okinawa Gunto 1945-04-01/06-30. Awards: Combat Action Ribbon (1945-04-28 and 1945-06-21); personnel entry 'Pearl Heart [sic] (15 WIA 1945-04-28, 11 WIA 1945-06-21)'; 'earned two battle stars for World War II service'. Decommissioned at Astoria, OR 1946-12-04; laid up Pacific Reserve Fleet, Columbia River Group, Astoria; struck from Naval Register 1972-06-01. Merchant service: sold for mercantile service 1973-09-01, renamed MV Petrola XVIII; registered to Petrola Hellas S.A., Panama, 1974; name changed to MV Petrola 18, September 1976; sold 1978 to Thetis Shipping & Trading Corp. S.A., Panama; resold (date unknown) to Sete Technical Services S.A., Panama, renamed MV Sete 50; final disposition - fate unknown. Specs: 3,900 t lt / 4,100 t fl; 328' x 50' x 11'2" lim; 11.6 kts; largest boom 60 t; complement 19 officers + 270 enlisted; armament 1x3"/50 DP, 2x quad 40mm w/ Mk 51 directors, 6x twin 20mm; diesel fuel 4,715 bbls; 2x GM 12-567A diesels, Falk main reduction gear, 2 props 1,800 shp, twin rudders; ship's service generators 3x100kW DC + 2x100kW AC. CO roster: Edgell (1944-05-09/1945-08-26), Monohan (1945-08-26/09-17), Dundon (1945-09-17/1945-12), Lindner (1945-12/1946-03-21), Leonhard (1946-03-21/1946-08), Kotsmith (1946-08/1946-12-04). Photos include ship pierside at Tongue Point Naval Station, Astoria, April 1946, serving as service vessel for Pacific Reserve Fleet small ships.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 1943-1978
- Limitations
- Secondary transcription archive (Navy-compiled data + contributed photos), not a primary document; consistent with DANFS on construction/commissioning but conflicts on decommissioning date (1946-12-04 vs 1946-11-30) and merchant-sale date (1973-09-01 vs shipscribe 1973-09-18) - see correction row. Merchant-career detail (Petrola XVIII / Petrola 18 / Sete 50) is NavSource-only, not corroborated by a primary registry this session. 'Pearl Heart' is a transcription typo for Purple Heart. No asbestos content; supports no asbestos claim.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-02
-
[4]shipscribe.com, 'USS Achelous (ARL-1) Class' register page (usnaux.shipscribe.com/ARL/ARL01.html), compiled 2007 from BuShips Ships' Data and OpNav records [other_primary]
- Locator
- Construction table row ARL-9; Disposition table row ARL-9; Ship Notes row 'ENDYMION'; Class Notes paragraphs 1-4
- Finding type
- historical_record
- Finding
- shipscribe.com U.S. Navy auxiliary register (S.S. Roberts, compiled from BuShips/OpNav records), ARL-1 class page: construction table lists ARL-9 ENDYMION reclassified 1943-11-03, builder 'Chicago Bridge, Seneca', keel 1943-08-23, launch 1943-12-17, commission 1944-05-09. Ship note: 'Ex LST-513 3 Nov 43. Ferry commission as LST-513 3 Jan-9 Feb 44 (from reduced to full commission at New Orleans 14 Jan 44). Converted by Bethlehem Steel, Key Highway, Baltimore, Md. In USN reserve 1946-72.' Disposition table: decommissioned 1946-11-29, struck 1972-06-01, disposal 1973-09-18 sold. Class notes: COMINCH directed 1942-12-03 conversion of three LSTs to landing-craft repair ships; ARL/ARB/AGP designations approved by SecNav 1943-01-13; on 1943-06-11 the Auxiliary Vessels Board recommended six further LST-to-ARL conversions, three for 1944 - these were ARL 7-9 (this hull among them); seven of nine ARL-1-class ships converted at Bethlehem-Key Highway, Baltimore (two at San Francisco); Gibbs & Cox design agent for all LST conversions; bow doors welded shut on U.S. units; 50-ton 'A'-frame hoist fitted; class data 2,125 t light / 4,100 t lim, 328' oa x 50' x 11.2' lim, complement 253 (1944), 11.6 kts, 1,800 HP GM diesels, original armament 1-3"/50 + 2-40mmQ + 8-20mm (ARL 1-4, 7-9 in 1943-44), postwar modification 2-40mmQ + 8-20mm (1945-48).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 1943-1973
- Limitations
- Independent authoritative register reconciling BuShips/OpNav records; adds the ferry-commission detail as LST-513 (1944-01-03 to 02-09) and the conversion yard (Bethlehem Steel, Key Highway, Baltimore) not in DANFS. Decommissioning 1946-11-29 conflicts with DANFS 1946-11-30 and NavSource 1946-12-04; disposal 1973-09-18 vs NavSource sale date 1973-09-01 - see correction row. No asbestos content; supports no asbestos claim.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-03
-
[5]Consolidated era inference - BuShips Ships' Data U.S. Naval Vessels Vol. 2 (Jan 1945) LST/ARL machinery and class data (shipscribe scan); NavSource spec block for this hull [other_primary]
- Locator
- SDB-1945 v2 LST/ARL design tables; NavSource archives/10/19/1909.htm specifications block
- Finding type
- asbestos_application
- Finding
- Era/design inference for a diesel-powered LST-hull auxiliary: the ship had no boilers (2x GM 12-567A diesels, 1,800 shp). Asbestos-relevant applications typical of the type and era: diesel exhaust lagging and manifold gaskets, engine-room thermal/acoustic insulation, deck coverings/tile, bulkhead and accommodation-space insulation, machinery packing - plus ARL-specific repair-shop outfit (machine, welding, fitting shops) contemporaneously stocked with asbestos-containing consumables such as welding blankets, insulation cement, and gasket sheet stock. The construction and conversion window (Chicago Bridge-Seneca, Aug-Dec 1943; Bethlehem-Key Highway, Feb-May 1944) fell inside the period when the federal government had reserved asbestos supply for shipbuilding.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-26
- Study period
- 1943-1946
- Population
- Construction workers (Chicago Bridge & Iron, Seneca, 1943); conversion-yard workers (Bethlehem-Key Highway, Baltimore, 1944); embarked repair-ship crew and serviced landing-craft crews; undocumented merchant crews (1973 onward)
- Limitations
- Class/era inference only - no document names this hull's materials. Diesel plant means no boiler insulation (the largest asbestos mass on steam ships); listed applications are era-typical, not ship-proven. Does not establish quantity, location, present-day presence (hull left Navy custody 1973, fate unknown), individual exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-04
-
[6]Corn, Jacqueline Karnell, and Jennifer Starr, 'Historical perspective on asbestos: Policies and protective measures in World War II shipbuilding,' American Journal of Industrial Medicine 11(3):359-373 (1987) [other_primary]
- Locator
- Abstract and article, AJIM 11(3):359-373
- Finding type
- asbestos_application
- Finding
- Peer-reviewed historical study documents that asbestos was used extensively as fireproofing and insulating material in U.S. shipbuilding during WWII - the era and program under which this LST-hull conversion was built and fitted - and that wartime demand drove unprecedented asbestos utilization aboard naval and merchant-type hulls.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-26
- Study period
- 1940s era documented; article 1987
- Population
- WWII shipyard workers and ship crews (class context)
- Limitations
- Program/era-level scholarship; does not name this vessel and does not establish that asbestos was aboard this hull, nor quantity, location, condition, exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-05
-
[7]CourtListener API v4 opinion search q='Endymion' (type=o), 18 results screened 2026-09-26 [court_record]
- Locator
- All 18 results screened at case-name and snippet level (single page)
- Finding type
- litigation_documented
- Finding
- CourtListener opinion-index sweep on the exact ship name 'Endymion' (2026-09-26, authenticated API v4): 18 results returned; every hit reviewed is a name collision - Krewe of Endymion Mardi Gras litigation (Citron v. Gentilly Carnival Club, Zacher v. Harrah's, Kern v. Kern, and related Louisiana Fourth Circuit matters), Louisiana cases touching 'Endymion' as street/event reference, two 19th-century cases (Yoakley v. King 1882; Bissell v. Lewis 1857), one 1820 circuit case involving a different vessel named Endymion (United States v. Andrews - a boarded merchant/slave-trade-era vessel), and Banana Services v. M/V Fleetwave (11th Cir. 1990, admiralty, no asbestos or this hull). No opinion names USS Endymion, ARL-9, or an LST-513 exposure claim. Classified: no qualifying result.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 2026-09-26
- Limitations
- Sweep covers indexed opinions only - complaints/dockets not surfaced by case-name matching, state-court unindexed decisions, and CAVC/BVA veterans' claims are outside this index. Absence of an indexed opinion does not prove no claim was ever filed; it establishes that no qualifying ship-naming opinion is in the index.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-06
-
[8]CourtListener API v4 opinion searches q='"ARL-9"' and q='"LST-513"' (type=o), 2026-09-26 [court_record]
- Locator
- "ARL-9" count=0; "LST-513" count=0; unquoted ARL-9 count=1,242 screened at case-name/snippet level (noise)
- Finding type
- litigation_documented
- Finding
- CourtListener hull-number sweeps (2026-09-26, authenticated API v4): exact-phrase '"ARL-9"' opinion search returned 0 results; exact-phrase '"LST-513"' opinion search returned 0 results. An unquoted 'ARL-9' query tokenizes to 'ARL' and returns 1,242 hits dominated by E.D.N.Y. docket-number magistrate-initial suffixes '(ARL)' (e.g., '(JFB)(ARL)') - pure query noise; none of the screened results referenced the hull. Classified: no qualifying result on either exact hull designation.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 2026-09-26
- Limitations
- Exact-phrase hull-number coverage is complete for the opinion index; docket-level (RECAP type=r) coverage is separately logged. Absence of an indexed opinion does not prove no claim was ever filed or settled; MDL-875-style consolidated complaints that list vessels only in unindexed pleadings would not surface here.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-07
-
[9]CourtListener API v4 docket search q='Endymion' (type=r), all 36 results screened 2026-09-26 (helper cl-auth-search.py); supplementary web litigation + BVA searches [court_record]
- Locator
- search_ledger rows sl-uss-endymion-arl9-07 through -09; pages 1-2 screened
- Finding type
- litigation_documented
- Finding
- CourtListener RECAP docket-level sweep for 'Endymion' (type=r, 2026-09-26, authenticated API v4): query returned 36 dockets; all 36 screened across both pages at case-name, party, and filing-description level - all name collisions or incidental document-level references: 'Endymion LLC' bankruptcy matters (S.D.N.Y. 2008 Esmerian/Merrill Lynch mortgage-fraud cluster), Endymion Systems creditor litigation, Louisiana cases touching 'Endymion' as street/krewe reference (Trout Point Lodge defamation, Roman Catholic Church of New Orleans bankruptcy), Deepwater Horizon MDL and consent decree, climate-nuisance suits (Chevron/BP/Exxon/King County), Celsius Network and SunPower bankruptcies, City of Detroit bankruptcy, copyright matters (Disney, OpenAI/Authors Guild), pharma patent litigation, and OCR-noise matches. No docket names USS Endymion, ARL-9, LST-513, or an asbestos claim aboard. A supplementary web litigation search ('USS Endymion' OR 'ARL-9' asbestos mesothelioma lawsuit) returned only litigation naming other hulls (USS McGinty, USS Rowan, USS Dynamic, USS Loyalty, USS Badger, USS Coral Sea, USS Worden, etc.) - no Endymion-specific claim surfaced in any consulted source. A VA Board of Veterans' Appeals search likewise returned no decision naming the ship.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 2026-09-26
- Limitations
- Docket sweep complete - all 36 hits screened, none qualifying. RECAP coverage is limited to dockets/documents in the index; complaints never captured by RECAP, unindexed state-court filings, and settled pre-docketing claims remain outside this coverage. Absence of a docket does not prove no claim was ever filed.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-08
-
[10]Cross-source reconciliation: NHHC DANFS entry; NavSource archives/10/19/1909.htm; shipscribe usnaux ARL-1 class register (construction/disposition tables, class notes, ship note for ENDYMION) [other_primary]
- Locator
- As cited in ev-01/-02/-03 locators
- Finding type
- historical_record
- Finding
- Source discrepancies resolved/logged: (a) Decommissioning date - DANFS 1946-11-30 vs NavSource 1946-12-04 at Astoria, OR vs shipscribe register 1946-11-29; NavSource's CO roster ends LTjg Kotsmith's command on 1946-12-04, consistent with its own December date; all three carried. (b) Sale/disposal - NavSource 'sold for mercantile service 1973-09-01' vs shipscribe disposal 1973-09-18 'Sold'; both carried. (c) Complement - NavSource 19 officers + 270 enlisted (289) vs shipscribe class figure 253 (1944); DANFS silent; both carried. (d) Armament - NavSource lists 6 twin 20mm mounts (12 barrels); shipscribe class data lists 8-20mm for the original 1943-44 fit; carried unreconciled. (e) DANFS entry text is stale post-decommissioning ('placed in the Pacific Reserve Fleet where she remains'), published 2016 but describing pre-1972 status - the 1972 strike and 1973 merchant sale come only from NavSource/shipscribe. (f) NavSource 'Pearl Heart' awards line is a transcription typo for Purple Heart; the underlying WIA counts (15 on 1945-04-28, 11 on 1945-06-21) match DANFS casualty figures for the shrapnel burst and torpedoing.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Study period
- 1943-1978
- Limitations
- Resolves publication-level discrepancies by recording each source's exact statement rather than merging; no single date adopted over the others in the record header framing. Does not affect identity or the asbestos posture. No asbestos content in any source.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-09
-
[11]NARA logbook guidance (archives.gov/research/military/logbooks; Special List 44 ship-number listing); shipscribe class notes (design-agent and conversion-yard attributions) [other_primary]
- Locator
- NARA deck-log guidance page; Special List 44 (sl-44-ship-number.pdf - ARL-2 only; no ARL-9/LST-513 entry); shipscribe ARL01.html class notes
- Finding type
- historical_record
- Finding
- Archival leads (not retrieved - no spend authorized): NARA RG 24 (Bureau of Naval Personnel) Entry 118 deck logs - the digitized Special List 44 ship-number listing includes only ARL-2 among ARL hulls; neither ARL-9 nor LST-513 appears, so this hull's WWII logs are held at NARA College Park but were not located in the digitized catalog. RG 19 (Bureau of Ships) holds conversion plans/specifications for the LST-to-ARL program - Gibbs & Cox was design agent for all conversions and Bethlehem-Key Highway performed this hull's conversion, so design-agent files and yard work orders are the likeliest documents for any ship-specific materials schedule. Builder-side records (Chicago Bridge & Iron, Seneca yard) would document the as-built LST material outfit.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-26
- Study period
- 1943-1973 records
- Limitations
- Record-group mapping only - no box-level retrieval performed. Whether any asbestos-specific document exists for this hull is unknown until surveyed in person. Nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-endymion-arl9-10
Attribution
- Compiled by
- Paul Danziger; Rod de Llano
- Publisher
- Danziger & De Llano, LLP
- License
- CC-BY-4.0
- Citation
- Danziger, P., and De Llano, R. (2026). AsbestosAtlas Navy Vessel Asbestos Exposure Dataset. Danziger & De Llano, LLP. DOI: not yet assigned
- Dataset version
- asbestosatlas-ships-2026.10.12-rc.1
- DOI
- not yet assigned