USS LSM-466

Evidence

9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).

1. [1]NavSource Online: Amphibious Photo Archive, USS LSM-466 page (history extract credited to 'LSM/LSMR Amphibious Forces', Vol. II, Turner Publishing Co., 1997, ISBN 1-56311-389-9; specifications block; commanding-officer listing) [other_primary]

   Locator

   USS LSM-466 ship page: history extract, awards/occupation-China service table, specifications block, commanding officers list

   Finding type

   vessel_history

   Finding

   USS LSM-466, LSM-1 class landing ship medium: laid down 20 January 1945 at Brown Shipbuilding Co., Houston, TX; launched 10 February 1945; commissioned 15 March 1945, LT. James A. Potter III, USNR, in command. WWII assignment: Asiatic-Pacific Theater; organizational listing LSM Flotilla Eleven, LSM Group Thirty-Three, LSM Division Sixty-Six. Postwar: Navy Occupation Service Medal (Asia clasp) and China Service Medal (extended) qualifying period 23 September 1945 to 26 February 1946; ribbon set also includes American Campaign Medal, Asiatic-Pacific Campaign Medal, World War II Victory Medal. Decommissioned 30 July 1947 at NOB Guam, Marianas Islands; struck from the Naval Register, date unknown; final disposition: transferred October 1947 to unknown foreign country, fate unknown. Spec block: 520 t. light / 743 t. landing / 1,095 t. full; 203'6" ovl x 34'6" beam; 13.2 kt max; complement 5 officers + 54 enlisted; troops 2 officers + 46 enlisted; armament 1 twin 40 mm bow + 4 single 20 mm; capacity 5 medium or 3 heavy tanks or 6 LVTs or 9 DUKWs; two Fairbanks Morse 38D8-1/8x10 diesels, direct drive, 1,440 bhp each @ 720 rpm, twin propellers 2,800 shp.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-01

   Study period

   1945-1947

   Limitations

   NavSource is a curated naval-history archive reproducing published/official material; the history extract is sourced to the Turner Publishing LSM/LSMR volume, not to NHHC/DANFS (no DANFS entry exists for this hull). Spec block is class-level LSM-1 data displayed on the hull page. Flotilla listing conflicts with the ship's documented September 1945 operational assignment under LSM Flotilla 16 (Temp) - see ev-02 and gaps. No asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-01

2. [2]Commander Transport Squadron TWELVE, U.S. Pacific Fleet, 'Action Report - Landings of Occupation Forces, NAGASAKI, JAPAN, September 1945' (serial 30 September 1945; declassified CONFIDENTIAL; scanned reproduction hosted by NavSource, archives/10/03/pdf/03138a.pdf) [other_primary]

   Locator

   Task organization (54.3.3 LSM Flotilla 16 (Temp), LSM Unit TWO); Part III chronology, 26 September 1945, 1040 entry and 2000 situation summary; Enclosure unloading table, 'LSM's Sept. 23/24/25' row 466

   Finding type

   vessel_history

   Finding

   Declassified CONFIDENTIAL action report of Commander Transport Squadron TWELVE (ComNAGASAKI Group / C.T.G. 54.3, Commodore H. B. Knoules, USN, in USS Cambria), dated 30 September 1945, 'Action Report, Landings at NAGASAKI, 18-28 September 1945,' names LSM-466 three times: (1) task organization - 'LSH [i.e., LSM] Flotilla 16 (Temp), Comdr. McKee / LSM Unit TWO, Lt. Cdr. Lane: LSM 450(F), 448, 465, 263, 462, 452, 122, 466, 103, 286'; (2) LSM unloading table - hull 466 recorded 0% unloaded 23 Sep, 0% 24 Sep, 100% 25 Sep; (3) chronology - at 1040 26 September ComLSMFlot 16 ordered to form task unit with Commander McKee in LSM-498, LSMs 78, 94, 103, 122, 170, 227, 253, 286, 307, 309, 452, 462, 465, and 466 in company, USS Roberts (DE-749) as escort, to depart Nagasaki 1400 26 September for Okinawa 'to load 10th Army Corps,' onward routing to Hiro Wan reporting to ComPhibGrp ELEVEN; the 2000 situation summary lists LSM-466 among departures. Report context: TG 54.3 embarked the 2nd Marine Division at Saipan and landed troops/equipment in the Nagasaki Harbor area commencing 23 September 1945 without opposition.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-01

   Study period

   September 1945

   Limitations

   Primary U.S. Navy operational document naming this hull. The scanned transcription renders 'LSM' as 'LSH' throughout (OCR artifact of the reproduction) - hull numbers identify the type. Documents the temporary operational assignment under LSM Flotilla 16 (Temp), which conflicts with the permanent listing 'LSM Flotilla Eleven' in the NavSource history extract - unresolved, see gaps. Establishes presence and tasking only; contains no asbestos, materials, or condition information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-02

3. [3]NavSource Online: Amphibious Photo Archive, USS LSM-466 page - contributed photograph captions (crew-contributed and veteran-collection imagery) [other_primary]

   Locator

   Image table: images 101446603-605, 101446802 (with LSM-468), 101446601 (Kure), 101446602 (Shanghai)

   Finding type

   vessel_history

   Finding

   NavSource photographic record for LSM-466 (contributed photographs, several from the collection of Norman W. Ekberg, EM3, a crew member): (1) commissioning of USS LSM-466 at Galveston, TX, 15 March 1945; (2) LSM-466 (background) with USS LSM-468 (foreground) off Naval Station Treasure Island, San Francisco Bay, 25-31 May 1945 (from the Hugh L. Hudson, Jr., RM/2c, USS LSM-467 collection); (3) LSM-466 and USS LSM-462 off-loading equipment at Kure Air Station, Japan, 16 October 1945 (photo by Ekberg); (4) LSM-466 moored pierside on the Whangpoo River, Shanghai, China, 31 January 1946.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-01

   Study period

   1945-1946

   Limitations

   Caption data on a curated private naval-history archive; dates/locations are contributor-attributed and consistent with the ship's documented occupation/China service (23 Sep 1945 - 26 Feb 1946). Photographic captions establish presence at named places on stated dates; no asbestos, materials, or condition information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-03

4. [4]uboat.net, Allied Warships of WWII - USS LSM 466 (LSM 466), ship page 13053 (compiled wartime warship database) [other_primary]

   Locator

   Ship data table: Ordered / Laid down / Launched / Commissioned / End service; History line: decommissioned 30 June 1947, stricken 28 August 1947

   Finding type

   vessel_history

   Finding

   uboat.net Allied Warships entry for USS LSM 466 (LSM class): ordered 10 July 1944; built by Brown Shipbuilding Co., Houston, Texas; laid down 20 January 1945; launched 10 February 1945; commissioned 15 March 1945; 'End service' 30 June 1947; decommissioned 30 June 1947; stricken 28 August 1947. The construction milestones concur with NavSource exactly; the decommissioning date conflicts (30 June vs NavSource's 30 July 1947 at NOB Guam) and the 28 August 1947 strike date fills a NavSource 'date unknown' field - both variants carried as unresolved.

   Verification

   partial

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-01

   Study period

   1944-1947

   Limitations

   Secondary compiled database (Guethlein/uboat.net warship files), not a primary register - carried for corroboration and to surface the milestone conflicts honestly. Decommission 30 June vs NavSource 30 July 1947 unresolved; strike date 28 August 1947 unverified against an official register extract. uboat.net gives no transfer recipient. No asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-04

5. [5]Naval Marine Archive (navalmarinearchive.com), Small Ships section - Landing Ships Medium builder/disposition table, LSM 466 row [other_primary]

   Locator

   LSM disposal table, row 'LSM | 466 | Brown SB | Houston TX | 15-Mar-45 | Transferred to unknown country'

   Finding type

   vessel_history

   Finding

   Naval Marine Archive 'Landing Ships, Medium - LSM, LSM(R), LSV' builder/disposition table lists: 'LSM | 466 | Brown SB | Houston TX | 15-Mar-45 | Transferred to unknown country' - independently corroborating the NavSource final disposition of transfer to an undocumented foreign recipient after October 1947.

   Verification

   partial

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-01

   Study period

   1945-1947

   Limitations

   Compiled shipbuilder/disposition table (Canadian naval archive nonprofit site), secondary compilation - corroborates 'unknown country' transfer but identifies no recipient; ultimate fate remains undocumented. No asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-05

6. [6]Basis sources: NavSource LSM-466 specifications block (propulsion type) and build dates; Corn & Starr (1987) for the wartime shipbuilding asbestos era (see ev-07) [other_primary]

   Locator

   NavSource specifications block (propulsion, build milestones); era context per Corn & Starr AJIM 11(3):359-373

   Finding type

   asbestos_application

   Finding

   Era inference for this hull, built on its documented configuration: LSM-466 was built January-March 1945 at Brown Shipbuilding's Houston emergency yard during the WWII period when the federal government had reserved asbestos supply for shipbuilding, and the LSM-1 design was diesel-mechanical (two Fairbanks Morse diesels, direct drive) with no steam plant - so the asbestos-relevant systems aboard this type were not boiler/turbine lagging but the era-standard diesel-ship applications: thermal insulation, machinery and exhaust lagging, gasket and valve-packing material, electrical insulation, and winch/brake linings.

   Verification

   inferred

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-10-01

   Study period

   1945

   Population

   Construction trades (Brown Shipbuilding, Houston, 1945); embarked troops and ship's company (era-consistent, not hull-proven)

   Limitations

   Era/design inference only - no document names asbestos aboard this hull. Diesel propulsion removes the boiler-lagging pathway but does not remove era-standard insulation/gasket/packing applications. Does not establish presence, quantity, location, condition, individual exposure, or causation; does not establish or defeat any legal claim.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-06

7. [7]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 (DOI resolves to Wiley Online Library article page; publisher 403s automated fetch after redirect - DOI target verified)

   Finding type

   asbestos_application

   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 program under which this LSM-1 landing ship was mass-produced - and that wartime demand drove unprecedented asbestos utilization aboard naval and merchant-type hulls.

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-10-01

   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 or the LSM type and does not establish that asbestos was or is aboard this hull, nor quantity, location, condition, exposure, or causation.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-07

8. [8]Batch-6279 search ledger (this record): NavSource ship page + Nagasaki action-report PDF + photographic record; uboat.net; Naval Marine Archive; NHHC DANFS URL check; NVR policy statement; MARAD ShipHistory; CourtListener authenticated searches (3 queries, all 0); secondary web sweep [other_primary]

   Locator

   search_ledger rows sl-uss-lsm-466-01 through sl-uss-lsm-466-11

   Finding type

   historical_record

   Finding

   No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or docketed case naming LSM-466 was found in the public sources searched - NHHC has no DANFS entry for this hull (ship-history URL 404s); the Naval Vessel Register excludes pre-1987 disposals; MARAD ShipHistory returns no record; authenticated CourtListener API v4 searches 'LSM-466' (opinions) 0 hits, 'LSM 466' (opinions) 0 hits, 'LSM-466' (dockets) 0 hits; secondary web sweep surfaced only law-firm marketing listicles (excluded by source policy). See search_ledger.

   Verification

   verified

   Role

   negative_finding

   Documentation level

   ship_specific

   Accessed

   2026-10-01

   Study period

   2026-10-01

   Limitations

   Absence of a located public record does not prove absence of asbestos aboard - a 1945 wartime-built hull is era-consistent with asbestos-containing materials, and the hull's post-1947 foreign-transfer trail is undocumented. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility.

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-08

9. [9]NARA Guide to Federal Records: RG 24 (Records of the Bureau of Naval Personnel - deck logs), RG 19 (Bureau of Ships), RG 59 (Department of State); Turner Publishing LSM/LSMR vol. II (published source behind the NavSource extract) [other_primary]

   Locator

   https://www.archives.gov/research/guide-fed-records/groups/024.html ; .../groups/019.html ; .../groups/059.html ; Turner Publishing ISBN 1-56311-389-9

   Finding type

   historical_record

   Finding

   Archival leads (not retrieved - no research-room pull or reproduction order authorized): (a) NARA RG 24 holds WWII-era deck logs cataloged by ship; LSM-466 deck logs for 1945-47 would document operations and any onboard remarks, and muster/crew data; NARA catalog is JS-rendered and was not machine-queried this session. (b) NARA RG 19 (Bureau of Ships) construction/outfitting correspondence may hold Brown Shipbuilding contract records for this hull block. (c) The October 1947 foreign transfer would have passed through State Department/Foreign Liquidation Commission or naval attaché disposal records - Department of State records (RG 59) and FLC files are the likely trail for identifying the recipient government. (d) The underlying source of the NavSource history extract, 'LSM/LSMR Amphibious Forces' Vol. II (Turner Publishing, 1997), may carry additional hull detail including the strike/transfer basis.

   Verification

   unverified

   Role

   archival_lead

   Documentation level

   context_only

   Accessed

   2026-10-01

   Study period

   1944-1948 records

   Limitations

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

   Atlas source

   true

   Evidence ID

   ev-uss-lsm-466-09