USS HMRT (ATR-91)

Evidence

15 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-15).

1. [1]Stephen S. Roberts, 'USS ATR-41 (HMRT Advantage) Class' compilation (shipscribe.com/usnaux/ATR/ATR41.html), compiled 2002-2011 from Bureau of Ships / Maritime Commission records [other_primary]

   Locator

   Construction table row 91; Disposition table row 91; Ship Notes ATR-91 entry; Class Notes (Requisition BAD-1750; VCNO direction 18 Jan 43)

   Finding type

   vessel_history

   Finding

   ShipScribe (Stephen S. Roberts) ATR-41-class compilation for hull 91: construction table row '91 | ATR-91 (HMRT PATROCLUS) | Ord. 25 Feb 43 | Levingston SB, Orange | Keel 31 Mar 43 | Launch 13 May 43 | Commiss. --'; disposition row '91 | Decomm. -- | Strike 31 Jul 46 | Disposal 22 Oct 43 | Fate Trf. | MA Sale 17 Oct 47'; ship note: 'Compl. 21 Oct 43, delivered the next day and trf. to UK under Lend Lease as PATROCLUS. Returned to U.S. custody 20 Jun 46. Sold (delivered) by MC to Moran Towing Co., New York (departed Navy custody 18 Nov 47). Merc. KEVIN MORAN 1947, MOHAWK 1960, re-engined mid-1960s, retained name through four sales 1973-85.'

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-26

   Study period

   1943-1985

   Limitations

   Compiled reference work built from official BuShips/MC records, not the underlying primary documents; authoritative for identity, milestones, and disposal chain. The 'Disposal 22 Oct 43' column entry is the Lend-Lease transfer date (out of U.S. custody), not a scrap-sale. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-01

2. [2]NavSource Naval History, USS ATR-91 / HMRT Patroclus (W-118) vessel page (navsource.net/archives/09/40/40091.htm) - volunteer archive reproducing official Navy vessel data [other_primary]

   Locator

   USS ATR-91 page: service-history block, merchant-service list, 'no DANFS history' statement, empty image table

   Finding type

   vessel_history

   Finding

   NavSource Naval History vessel page for ATR-91 (header: 'HMRT Patroclus (W-118), ex ATR-91'): laid down and launched 'date unknown' at Levingston Shipbuilding Co., Orange, TX; 'Delivered to the US Navy, 22 October 1943'; 'ATR-91 never saw active service in the US Navy'; 'Transferred under the Lend-Lease Act to the United Kingdom, Commissioned HMRT Patroclus (W-118), date unknown'; 'Returned to US Naval custody in 1946'; 'Struck from the Naval Register, date unknown'. Merchant chain: sold 1947 to Moran Towing & Transportation, New York (Kevin Moran); 1959 to Pacific Island Navigation Co., Seattle (Mohawk); 1973 General Marine Company Pte. Ltd., Singapore; 1976 Puget Sound Steam Ship Co., San Francisco; 1983 General Marine Int. Services Inc., Panama; 1985 Crowley Int. Inc., Panama; final disposition 'fate unknown.' Page states 'There is no DANFS history for ATR-91' and carries no images.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-26

   Study period

   1943-1985

   Limitations

   Volunteer-maintained archive, not an official Navy site. Its specifications block prints the wooden ATR-1-class data (852 t, Fulton steam plant, B&W boilers, 165'6") - inapplicable to this steel diesel-electric hull (see correction row ev-uss-hmrt-atr91-06). 'Pacific Island Navigation' vs. TBI's 'Pacific Inland Navigation' spelling varies across sources. Contains no asbestos information.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-02

3. [3]Bureau of Ships, Ships' Data, U.S. Naval Vessels, Vol. III (1945), NAVSHIPS 250-012 - digitized scan at shipscribe.com [other_primary]

   Locator

   Index listing p. ~52 scan (RESCUE TUGS (ATR) block, 'ATR91-96 Transferred to United Kingdom'); AUXILIARIES - OCEAN TUGS, AUXILIARY (ATA) design and machinery tables (ATA 121-125, ATA 146, ATA 170-213 rows)

   Finding type

   vessel_history

   Finding

   Bureau of Ships 'Ships' Data, U.S. Naval Vessels' Vol. III (1945), NAVSHIPS 250-012 (shipscribe digitization): the official register's class index prints 'ATR91-96 Transferred to United Kingdom' under RESCUE TUGS (ATR), with the companion entries 'ATR41/42/48/49 Transferred to United Kingdom,' 'ATR 43-47 now ATA 121-125,' 'ATR 90 now ATA 146,' 'ATR97-140 now ATA 170-213.' The same volume's design/machinery rows for the identical 143-ft steel design group (ATA 121-125, ATA 146, ATA 170-213) give: 143.0 ft overall / 134'6"-133'8" waterline, 33'10" beam, 13.0 kts trial, 835 t trial displacement, accommodations 5 officers + 40 enlisted, 1x3"/50 DP, and a single-screw 'G.M. Diesel-elec. 12-278A' plant rated 1,500 hp through a Fairbanks-Morse reduction gear with diesel-driven 60 kW 120 V D.C. ship's-service generators and ~1,200-1,300 bbl diesel-oil capacity - a diesel-electric plant with no boilers.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-26

   Study period

   1945

   Population

   Design accommodations 45 (5 officers, 40 enlisted) - class figure

   Limitations

   Primary-source (official BuShips register) confirmation that ATR-91 existed in the 1945 construction register and was transferred to the UK; the design/machinery figures are for the identical design group renumbered ATA - class-level data, not a hull survey. The scan's OCR is misaligned in places; values were cross-read across table sections. No asbestos statement anywhere in the register.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-03

4. [4]shipbuildinghistory.com (Tim Colton), 'Levingston Shipbuilding, Orange TX' yard list - most recent update January 23, 2022 [other_primary]

   Locator

   Production table row hull 307 (O.N. 254469); yard-history paragraph

   Finding type

   vessel_history

   Finding

   Levingston Shipbuilding yard production table (shipbuildinghistory.com, Tim Colton compilation): yard hull 307, official number 254469, original name 'ATR 91/HMS Patroclus,' owner 'US Navy/Royal Navy,' type Tug, 498 GT, 143 ft, delivered 21-Oct-43, disposition 'To Britain as W 118, sold 1947 as Kevin Moran, Mohawk 1960, active.' Yard history: Levingston was 'the Navy's leading builder of ocean tugs' in WWII, producing more than any other U.S. yard; the company closed in 1985.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-26

   Study period

   1943-1985

   Population

   Levingston construction workforce (1943)

   Limitations

   Reputable shipbuilding-data compilation, not an official registry. The official number 254469 corroborates the merchant documentation number carried by tugboatinformation.com's USCG-derived data. 'Delivered 21-Oct-43' matches shipscribe's completion date (delivery/transfer followed the next day). The trailing 'active' has no as-of date. No asbestos information.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-04

5. [5]uboat.net Allied Warships: HMS Patroclus (W 118) ship page (ship/7410) and Favourite-class page (class/358) - specialist naval-history compilation [other_primary]

   Locator

   ship/7410 data table (builder, launched 15 May 1943, commissioned 22 Oct 1943) and 'Notable events' convoy block; class/358 technical table and ship list

   Finding type

   vessel_history

   Finding

   uboat.net Allied Warships entry for HMS Patroclus (W 118): Royal Navy rescue tug of the Favourite class, pennant W 118, built by Levingston Shipbuilding Co. (Orange, Texas), launched 15 May 1943, commissioned 22 Oct 1943. The page's one documented operational event places HMRT Patroclus in the Mediterranean with combined convoy OS 67 / KMS 41: it joined the convoy from Bizerta on 21 February 1944 and arrived at Augusta (Sicily) with the convoy on 23 February 1944. The Favourite-class page lists 23 RN rescue tugs of this 143-ft steel design group, 783 BRT, ~14 kts, 1,875 HP, armament 1x3" AA + 2x20mm AA; sister ATR-92 (HMS Athlete W 150) is marked 'Lost on 17 Jul 1945.'

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-26

   Study period

   1943-1946

   Population

   Royal Navy rescue-tug crew (merchant-navy or RN manning undocumented)

   Limitations

   Volunteer-compiled naval-history database, not an official RN record; class tech figures (783 BRT, 1,875 HP, 14 kts) differ in measurement basis from the U.S. register figures (835 t trial, 1,500 shp, 13 kts) - both framings retained. Launch date 15 May conflicts with shipscribe's 13 May 1943 (logged as discrepancy). The convoy association documents presence with the convoy, not any specific rescue action. No asbestos information.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-05

6. [6]NavSource 40091.htm spec block vs. shipscribe ATR41.html class header/tables; BuShips SDB 1945 v3 index; shipbuildinghistory levingston.htm hull 307; morantug.com Tow Line (Aug 1953); tugboatinformation.com USCG data block (hull material STEEL) [other_primary]

   Locator

   NavSource 40091.htm 'ATR-1 Class Rescue Tug' specs block; shipscribe ATR41.html class header 'Design: Navy BAT-1'; SDB1945v3 index ATR block; levingston.htm row 307; Tow Line Aug 1953 issue; tugboatinformation.com/tug.cfm?id=3046 USCG block

   Finding type

   vessel_history

   Finding

   Design-identity correction: NavSource's ATR-91 page displays the wooden ATR-1-class specification block (852 t light / 1,315 t full; 165'6" x 33'4" x 15'6"; Fulton Iron Works vertical triple-expansion steam engine; two Babcock & Wilcox 'D'-type boilers 200 psi; 1,600 shp; 12.2 kts), and tugboatinformation.com repeats that text verbatim (attributed '(NavSource Online)'). All primary-grade and builder-side records place ATR-91 in the steel 143-ft diesel-electric group: shipscribe's BuShips/MC-derived table files ATR-91 under class 'HMRT ADVANTAGE (ATR-41), Design: Navy BAT-1' (600 t light / 835 max, 143.0 ft, GM diesel-electric 1,500 HP, 13 kts); the BuShips 1945 register indexes 'ATR91-96 Transferred to United Kingdom' among the steel-hull group; the Levingston yard list gives hull 307 as 143 ft / 498 GT; Moran's own Tow Line magazine (Aug 1953) describes Kevin Moran as '143-foot, 1,900-horsepower, diesel-electric'; and the USCG-derived documentation data on TBI lists hull material STEEL. The steam-plant specification is therefore boilerplate misapplied to this hull and is not relied on anywhere in this record.

   Verification

   verified

   Role

   correction

   Documentation level

   ship_specific

   Accessed

   2026-09-26

   Study period

   1943-1985

   Limitations

   Resolves a systematic secondary-source error: NavSource applies the wooden ATR-1 spec block to the steel ATR-91-96 pages (same block appears on the ATR-92/Athlete page). One loose end: TBI's USCG-derived fields print Length 165.6 ft, matching neither the 143-ft design nor consistent with it - treated as an unresolved registry-data discrepancy (see gaps). The '1,900 hp' figure in Tow Line likely reflects a different (brake) rating than the 1,500 shp design figure. No asbestos content in any of these sources.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-06

7. [7]Stephen S. Roberts, 'USS ATR-41 (HMRT Advantage) Class' class notes (shipscribe.com), citing Requisition BAD-1750, VCNO direction 18 Jan 43, Munitions Assignment Board allocations, and the BuShips-General Motors contract structure [other_primary]

   Locator

   Class Notes paragraphs 1-2 (requisitions, VCNO 18 Jan 43 directive, GM contract / Levingston subcontract, allocation history)

   Finding type

   vessel_history

   Finding

   Program context for this hull's path: Britain submitted Lend-Lease Requisition BAD-1750 for six '143-foot ocean-going salvage tugs' (designated ATR 91-96 by the U.S.); on 18 Jan 43 the VCNO directed construction of ATR 91-100 (four more than requisitioned) under the Maximum War Effort program; BuShips contracted with General Motors Corp., which provided the diesel engines while subcontractors built the hulls - Levingston built ATR 91-96. The British received all six (Patroclus, Athlete, Flare, Flaunt, Cheerly, Emphatic); the British ultimately received 23 of the 29 steel rescue tugs they had requisitioned. ATR-91 thus went straight from builder's completion to Royal Navy custody without a U.S. commissioning.

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-09-26

   Study period

   1941-1945

   Limitations

   Program-level procurement history explaining why this hull was built and immediately transferred; compiled source citing CNO/VCNO/Munitions Assignment Board actions - underlying directives not independently digitized. Establishes steel hull + diesel-electric design intent for the ATR 91-96 group, not materials aboard hull 91 specifically. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-07

8. [8]Moran Towing & Transportation 'Tow Line' magazine, August 1953 issue (morantug.com archive PDF); tugboatinformation.com vessel records 3046/767/10686 (USCG documentation-derived fields) [other_primary]

   Locator

   Tow Line Aug 1953 p. describing Kevin Moran (143-ft diesel-electric); tugboatinformation.com/tug.cfm?id=3046 USCG data block

   Finding type

   vessel_history

   Finding

   Merchant-phase corroboration from the owner community: Moran Towing's own company magazine, Tow Line (August 1953 issue, hosted on morantug.com's archive), describes 'our... 143-foot, 1,900-horsepower, diesel-electric Kevin Moran - self-sustaining for as long as a month at sea' towing a disabled freighter, and references the tug's December 1948 work on the twice-wrecked British S.S. Leicester. tugboatinformation.com (TBI) carries the hull under ids 3046/767/10686 with USCG-derived fields: USCG Doc. No. 254469, IMO 5238767, call sign WIWL, hull material STEEL, Levingston hull 307, 497 GT / 193 NT, previous names 'ATR-91, HMS Patroclus (W-118), Kevin Moran, Mohawk' and the same owner chain (U.S. Navy, Royal Navy, Moran, Pacific Inland Navigation, General Marine, Puget Sound Steamship, General Marine Int., Crowley Int.).

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-26

   Study period

   1947-1985

   Population

   Moran Towing commercial crews (1947-c.1960); later commercial crews (1960-1985)

   Limitations

   Tow Line is the owner's own publication - a contemporary primary-grade source for fleet identity and plant type; TBI is a compiled commercial-vessel database whose prose text copies NavSource's (erroneous) spec block but whose USCG-derived fields independently corroborate steel construction. '1,900-horsepower' vs. 1,500 shp design is a rating-basis difference; '165.6 ft' in TBI's length field conflicts with the 143-ft design and yard list (unresolved). No asbestos information.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-08

9. [9]Consolidated era inference - BuShips SDB 1945 v3 machinery rows for the identical 143-ft design group (G.M. diesel-electric 12-278A, no boilers) via shipscribe digitization; era background Corn & Starr (AJIM 1987) and Fleischer et al. (J Ind Hyg Toxicol 1946) [other_primary]

   Locator

   SDB 1945 v3 ATA-group machinery row ('G. M. Diesel-elec. 12-278A | 1,500 | Sgl | F.B.'); AJIM 11(3):359-373; PMID 21016030

   Finding type

   asbestos_application

   Finding

   Design/era inference: this hull was a 1943 Navy-contract steel auxiliary rescue tug built at a Gulf Coast commercial yard with a GM diesel-electric plant and no boilers - so the boiler and steam-line lagging that dominates asbestos mass in steam-propelled contemporaries does not apply. Era-typical asbestos applications for the type are engine-exhaust and muffler lagging, machinery gaskets and packing, electrical cable insulation, machinery-space/bulkhead insulation and fireproofing appropriate to a steel hull, deck coverings or tile, and brake linings on towing winch and windlass. Royal Navy wartime operation (1943-46) and a merchant career extending past 1985 including a mid-1960s re-engining are undocumented for materials in either direction.

   Verification

   inferred

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-09-26

   Study period

   1943-1985

   Population

   Levingston construction workers (1943); Royal Navy rescue-tug crew (1943-46); Moran and successor merchant crews (1947-c.1985)

   Limitations

   Class/era inference only - no ship-level asbestos record located for this hull. The machinery data confirm plant type (diesel-electric, no boilers) but say nothing about insulation content. Establishes no quantities, no locations, no condition, no exposure for any individual. Because the hull left U.S. service within days of delivery and then spent 40+ years in foreign-flag and U.S. merchant hands including a re-engining, construction-era materials may have been substantially replaced - direction unknown.

   Atlas source

   true

   Evidence ID

   ev-uss-hmrt-atr91-09

10. [10]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

    historical_record

    Finding

    Peer-reviewed historical study documents that asbestos was used extensively as a fireproofing and insulating material in U.S. shipbuilding during WWII - the era and emergency construction program under which this FY1942-program auxiliary tug was built (ordered Feb 1943, laid down Mar 1943 at a commercial contract yard under a BuShips/GM contract).

    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 scholarly documentation of asbestos use in WWII shipbuilding generally; does not name this vessel, class, or yard and does not establish that asbestos was or remains aboard this hull, nor quantity, location, condition, exposure, or causation.

    Atlas source

    true

    Evidence ID

    ev-uss-hmrt-atr91-10

11. [11]Fleischer, W.E., Viles, F.J. Jr., Gade, R.L., and Drinker, P., 'A health survey of pipe covering operations in constructing naval vessels,' J Ind Hyg Toxicol 28(1):9-16 (Jan 1946), PMID 21016030 [other_primary]

    Locator

    PubMed record PMID 21016030; article pp. 9-16 (pipe covering material section)

    Finding type

    historical_record

    Finding

    The U.S. Maritime Commission-commissioned industrial-hygiene survey of WWII pipe-covering operations at two Navy yards and two Navy contract yards documented that 'an important ingredient of pipe covering material used on U.S. Navy vessels is amosite' - i.e., asbestos insulation was standard material in wartime naval-vessel construction of this hull's era and contract type (BuShips contract hull built at a commercial yard).

    Verification

    verified

    Role

    context

    Documentation level

    class_or_era

    Accessed

    2026-09-26

    Study period

    Wartime fieldwork; published Jan 1946

    Population

    WWII naval-vessel pipe-covering workers (era context)

    Limitations

    Era-level documentation of asbestos use in naval construction generally; does not name this vessel, class, or builder yard (whether Levingston was among the surveyed contract yards is unverified) and establishes nothing about this hull's materials, condition, or any individual exposure.

    Atlas source

    true

    Evidence ID

    ev-uss-hmrt-atr91-11

12. [12]National Archives, Special List #44, by Ship Numbers (WWII deck-log index) [other_primary]

    Locator

    PDF text-layer extraction: ATR run lists ATR-1..ATR-100 minus exactly the Lend-Lease transfers (17-20, 41-42, 48-49, 91-96); no ATR-91 entry

    Finding type

    historical_record

    Finding

    NARA Special List 44 (WWII deck-log index by ship number) lists ATR hulls ATR-1 through ATR-100 with a conspicuous pattern: every hull transferred to the U.K. at delivery is absent (ATR 17-20, 41-42, 48-49, and 91-96 - including ATR-91), while hulls that entered U.S. service (ATR-43, -44, -90, -97, -98, -99, -100, etc.) are indexed. No ATR-91 deck-log entry exists in that accession - consistent with a hull that never commissioned in the U.S. Navy; Royal Navy operational records for HMRT Patroclus would sit in U.K. National Archives (ADM) series, not NARA.

    Verification

    verified

    Role

    negative_finding

    Documentation level

    ship_specific

    Accessed

    2026-09-26

    Study period

    1941-1959 accession coverage

    Limitations

    Absence from the deck-log index confirms no U.S. WWII deck-log series exists for a hull that never entered U.S. service; it corroborates the Lend-Lease transfer but does not bear on asbestos exposure and does not exclude BuShips construction correspondence files for the hull (see ev-uss-hmrt-atr91-14).

    Atlas source

    true

    Evidence ID

    ev-uss-hmrt-atr91-12

13. [13]CourtListener API v4 search (opinion and RECAP docket indexes) via cl-auth-search.py [court_record]

    Locator

    search_ledger rows sl-uss-hmrt-atr91-07, -08, -09, -14, -15; collisions: lawd 2:21-cv-00443 docket id 59678301; flsd 9:18-cv-80176 docket id 6309656; txsd 4:99-cv-01463 docket id 11207425

    Finding type

    litigation_documented

    Finding

    CourtListener API v4 authenticated sweeps via cl-auth-search.py (2026-09-26): opinion-index query for exact hull number 'ATR-91' returned zero results; RECAP docket-index query for 'ATR-91' returned two hits, both name collisions unrelated to the vessel - Exclusive Real Estate Investments LLC v. McLarens Inc. (W.D. La. 2:21-cv-00443, insurance contract; 'ATR-91' appears as OCR noise inside a Lloyd's certificate exhibit) and Kleiman v. Wright (S.D. Fla. 9:18-cv-80176, property dispute; 'ATR-91' is OCR garbage in an exhibit). Name sweep on 'Patroclus': opinion index returned three hits, all collisions in pre-1921 opinions (Kipp v. East River Electric Light Co.; C.A. Gambrill Manufacturing Co. v. American Foreign Banking Corp.; The Bernicia) where the word is a mythological or vessel-name reference unrelated to this tug; docket index returned 13 hits, all collisions - the only vessel-related docket is Nichimin America Inc v. M/V Patroclus (S.D. Tex. 4:99-cv-01463, filed 1999, terminated 2001, 'Marine contract actions'), naming a different oceangoing motor vessel (this hull was merchant Mohawk by then, last Panama registry 1985) and not an asbestos action; the other 12 are libel, patent, trademark, constitutional, and civil-rights dockets where 'Patroclus' is party-name or exhibit text. Separately, 'Kevin Moran' is a high-collision name - a different tug (1919 Bethlehem hull, ex-ATF-80 Yaqui/Ballenas/LT-348 Cabrilla) carried the same name, and 'Tug Kevin Moran, Inc.' appears as a corporate litigant in cases (e.g., Curtis Bay Towing Co. v. Tug Kevin Moran, Inc., 2d Cir. 1947) that predate this hull's 1947 Moran acquisition and concern other vessels. No qualifying asbestos litigation naming this hull was located.

    Verification

    verified

    Role

    negative_finding

    Documentation level

    ship_specific

    Accessed

    2026-09-26

    Study period

    2026-09-26

    Limitations

    Search-index sweeps are not an exhaustive survey of all filed cases, and OCR creates noise. Exact-hull sweeps plus both 'Patroclus' sweeps found no qualifying asbestos litigation; name sweeps for 'Kevin Moran', 'HMS/HMRT Patroclus', spaced 'ATR 91', and 'Mohawk' remained pending under fleet pacing at session end (sl-uss-hmrt-atr91-15) - the controlling negative finding rests on the completed hull-designation and Patroclus sweeps plus the implausibility of hull-name captions for a tug that left U.S. service in 1943. Any crew-era claims would run under plaintiff/defendant names, not the hull number.

    Atlas source

    true

    Evidence ID

    ev-uss-hmrt-atr91-13

14. [14]Batch-3021 search ledger (this record): NHHC/DANFS, NavSource, shipscribe, shipbuildinghistory Levingston, uboat.net, Moran Tow Line, tugboatinformation.com, BuShips SDB 1945 v3, NVR, MARAD Vessel History Database, NARA SL-44, NAVSEA FOIA reading room, CourtListener [other_primary]

    Locator

    search_ledger rows sl-uss-hmrt-atr91-01 through -15

    Finding type

    historical_record

    Finding

    No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, environmental filing, or docketed case naming ATR-91, Patroclus (W-118), Kevin Moran, or Mohawk was found in the public sources searched (see search_ledger). Consistent negatives: no DANFS/NHHC entry exists (404 at history.navy.mil + NavSource explicit statement); NVR online carries no record (pre-1987 disposals excluded); MARAD Vessel History Database has entries for other ATR hulls (68, 70, 78, 79, 81, 9) but none for ATR-91, Patroclus, Kevin Moran, or Mohawk; NARA SL-44 indexes no deck log for this hull; the NAVSEA FOIA asbestos reading room returned HTTP 403 to automated fetch.

    Verification

    verified

    Role

    negative_finding

    Documentation level

    ship_specific

    Accessed

    2026-09-26

    Study period

    2026-09-26

    Limitations

    Absence of a located public record does not prove absence of asbestos aboard - a 1943 steel diesel-electric auxiliary is era-consistent with asbestos in exhaust lagging, gaskets, electrical insulation, bulkhead fireproofing, deck coverings, and brake linings. Equally, no record establishes asbestos aboard this hull. Does not establish or defeat any exposure claim or legal eligibility. The hull's U.S.-custody window was effectively nil (delivered and transferred the same day, Oct 1943).

    Atlas source

    true

    Evidence ID

    ev-uss-hmrt-atr91-14

15. [15]National Archives, 'Researching Asbestos aboard US Naval Vessel up through 1961' (guided topic); NARA record-group guides RG 19 / RG 178; UK National Archives ADM series [other_primary]

    Locator

    NARA asbestos guide 'Cartographic Branch' section (Hull Series, S39/S48 codes) and RG 19 correspondence listing; SL-44; UK ADM series

    Finding type

    historical_record

    Finding

    Archival leads (not retrieved - no spend authorized): (a) NARA RG 19 'Hull Series' ship engineering drawings arranged by hull number - S39 Insulation and Lagging and S48 Piping drawings are the asbestos-relevant Material Groups per NARA's guided topic 'Researching Asbestos aboard US Naval Vessel up through 1961'; a hull file for ATR-91 plausibly exists though no NAID was located this session; (b) BuShips RG 19 general correspondence under filing code ATR91 / class ATR41 for construction and acceptance records; (c) Maritime Commission disposal file for the Oct-Nov 1947 sale to Moran Towing (RG 178-associated MC records) would settle the sale documentation; (d) Royal Navy service records for HMRT Patroclus (W-118), including the Feb 1944 Mediterranean convoy duty, would sit in UK National Archives ADM series; (e) USCG vessel documentation file for official no. 254469 would carry merchant-era particulars including the unexplained 165.6-ft documented length.

    Verification

    unverified

    Role

    archival_lead

    Documentation level

    context_only

    Accessed

    2026-09-26

    Study period

    1943-1985 records

    Limitations

    Record-series mapping only - no box-level retrieval performed; existence of asbestos-specific documents for this hull is unknown until records are surveyed in person. Nothing in this row is an asbestos finding.

    Atlas source

    true

    Evidence ID

    ev-uss-hmrt-atr91-15