USS LSM-261

Name
USS LSM-261
Hull designation
LSM-261
Vessel class
LSM-1
Evidence tier
Tier 2
Evidence entries
7
Record ID
uss-lsm-261-lsm261
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-lsm-261-lsm261

Evidence

7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).

  1. [1]research packet ue-packet.md (2 sources cited) [nhhc_danfs]
    Finding type
    vessel_history
    Finding
    Identity packet verdict: VERIFIED (MIRROR-SOURCED; thin file — real identity: USS LSM-261. Designation: LSM-261. Type/class: LSM-1-class
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Limitations
    qualifier: VERIFIED (MIRROR-SOURCED; thin file
    Evidence ID
    uss-lsm-261-lsm261-pkt-ue-packet-md
  2. [2]NavSource Online: Amphibious Photo Archive, USS LSM-261 (history extract credited to 'LSM-LSMR Amphibious Forces,' Vol. II, Turner Publishing Company, 1997, ISBN 1-56311-389-9) [other_primary]
    Locator
    NavSource LSM-261 page body, specifications and service-history/commanding-officers blocks
    Finding type
    vessel_history
    Finding
    Vessel-history record for this hull: laid down 26 April 1944 at Federal Shipbuilding and Dry Dock Co., Newark, N.J.; launched 3 June 1944; commissioned 28 June 1944, LT. Angelo J. Smith, Jr. USNR in command. Assigned in the Asiatic-Pacific Theater to LSM Flotilla Five (CDR. W. H. Carpenter USN), LSM Group Thirteen (LCDR. T. F. Griswold USNR), and LSM Division Twenty-Six. Participated in the Iwo Jima operation (assault and occupation, 19 February-16 March 1945); a contributed photograph shows LSM-261 and LSM-266 beached at Iwo Jima, 15 February 1945. Earned one battle star. Decommissioned 28 May 1946 at Terminal Island Navy Yard, San Pedro, CA; struck from the Naval Register (date unknown, per source); sold 17 February 1948 to Clark Sales Co., Pittsburgh, PA, fate unknown. Specifications: displacement 520 t. (light), 743 t. (landing), 1,095 t. (fully loaded); length 203'6" (ovl); beam 34'6"; speed 13.2 kts max; armament one twin bow-mounted 40mm gun, four single 20mm mounts; two Fairbanks Morse (Model 38D8-1/8x10) diesel engines, direct drive, 1,440 BHP each @ 720 rpm, twin propellers, 2,800 shp; complement 5 officers/54 enlisted. Commanding officers: LT. Angelo John Smith Jr., USNR (28 June 1944-7 December 1945); LTjg. Roy Benton Duck, USN (7 December 1945-18 May 1946).
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    1944-1948
    Population
    Pacific theater crew, 1944-46 (design complement 5 officers, 54 enlisted); Federal Shipbuilding and Dry Dock Co. construction trades, 1944
    Limitations
    Private naval-history archive compiling a 1997 unit-history book, not an NHHC/DANFS record - no DANFS entry exists for this hull to independently cross-check dates or specifications (see ev-uss-lsm-261-lsm261-02). Documents service history and specifications only; no asbestos, construction-material, or hazmat content. The striking date is stated as 'date unknown' by the source itself; final fate after the 1948 sale is undocumented.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-261-lsm261-01
  3. [3]NHHC Dictionary of American Naval Fighting Ships (history.navy.mil) - canonical DANFS URL pattern for this hull; also checked at the ibiblio/HyperWar DANFS mirror, https://ibiblio.org/hyperwar/USN/ships/dafs/LSM/lsm261.html [nhhc_danfs]
    Locator
    HTTP 404 response, live-checked 2026-10-01 (both the history.navy.mil canonical path and the ibiblio/HyperWar mirror)
    Finding type
    historical_record
    Finding
    No DANFS/NHHC ship-history entry exists for this hull. Both the live NHHC URL and the ibiblio/HyperWar DANFS mirror return HTTP 404 (verified by direct HTTP check, 2026-10-01). DANFS generally profiles named vessels; LSM-261 was never renamed and has no individual NHHC history page, unlike some LSM hulls that were later renamed and do carry DANFS entries (e.g., Kodiak I, ex-LSM-161).
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    2026-10-01 (access check)
    Limitations
    Confirms the absence of an official DANFS entry as of 2026-10-01; does not mean no documentation of this hull exists anywhere, only that NHHC's standard ship-history reference does not cover it. Does not establish or rule out asbestos content.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-261-lsm261-02
  4. [4]Naval Vessel Register (NVR) homepage, official coverage statement (maintained by Naval Sea Systems Command on behalf of the Chief of Naval Operations) [other_primary]
    Locator
    NVR homepage body text, 'Search The Official Inventory of US Naval Ships and Service Craft' section
    Finding type
    historical_record
    Finding
    NVR states: 'Ships and service craft disposed of prior to 1987 are currently not included, however the data is gradually being added along with other updates.' LSM-261 was sold/disposed in 1948, decades before NVR's digitized disposal coverage window; a ship-detail page lookup attempt returned only the site's generic template rather than a ship record, consistent with this disclaimer.
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    2026-10-01 (access check)
    Limitations
    This is NVR's general coverage policy, not an independently reverse-engineered hull-specific lookup confirming absence (NVR's internal ship-detail URL scheme was not fully mapped). It explains, rather than independently proves beyond doubt, why no NVR record for this hull was found. Does not address asbestos.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-261-lsm261-03
  5. [5]CourtListener API v4 search (fleet-authenticated via cl-auth-search.py), type=o (Opinion) and type=r (RECAP/docket), queries '"LSM-261"' and '"LSM 261"' [court_record]
    Locator
    cl-auth-search.py helper output, 2026-10-01 (4 completed queries returning 0 results each; 1 query blocked by fleet pacer)
    Finding type
    litigation_documented
    Finding
    Zero results across both the opinion and RECAP/docket indices for '"LSM-261"' and '"LSM 261"' (four completed queries, 2026-10-01). No qualifying asbestos litigation, no name-collision hits, and no docket references naming this hull were located. A fifth query for the exact name '"USS LSM-261"' was attempted but blocked each time by the fleet-wide pacer (hourly/burst budget) and not completed this session; because LSM-261 carries no proper name beyond its hull number, the completed hull-number-form queries are treated as providing equivalent coverage.
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    2026-10-01 (search date)
    Limitations
    Confirms absence from CourtListener's indexed opinions and RECAP dockets as of 2026-10-01; does not rule out unindexed state-court filings or settled cases never fully docketed on PACER/RECAP. No ship-specific asbestos litigation exists in this index for this hull.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-261-lsm261-04
  6. [6]NavSource specifications/propulsion block for this hull + Atlas shipyard dataset record 'federal-shipbuilding-kearny' [other_primary]
    Locator
    NavSource propulsion/specifications block; shipyards.json record 'federal-shipbuilding-kearny'
    Finding type
    asbestos_application
    Finding
    Era/type inference: LSM-261 was a diesel-powered (two Fairbanks Morse Model 38D8-1/8x10 diesels, no boilers) LSM-1-class amphibious ship built in 1944 by Federal Shipbuilding & Dry Dock Co. (Kearny/Port Newark, N.J.). Period U.S. Navy construction specifications for WWII-era hulls, irrespective of propulsion type, called for asbestos-containing gaskets and packing on diesel engines, generators, and piping systems; lagging on engine-room and exhaust piping; deck covering; and bulkhead/overhead fireproofing and insulation.
    Verification
    inferred
    Role
    supporting
    Documentation level
    class_or_era
    Accessed
    2026-10-01
    Study period
    1944-1946
    Population
    Federal Shipbuilding and Dry Dock Co. construction trades, 1944; wartime crew, 1944-46
    Limitations
    Class/era/propulsion-type inference only - no ship-specific asbestos record for this hull exists (see ev-uss-lsm-261-lsm261-02/03/04, all negative findings). As a diesel-engined LSM, this hull would not have carried the boiler/turbine lagging typical of steam-propelled destroyers or cruisers of the same era; any asbestos scope aboard would have been materially smaller and confined to diesel/auxiliary systems. No LSM-1-class profile exists in this project's class dataset to cross-check against (class-a through class-f worktrees reviewed, none present).
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-261-lsm261-05
  7. [7]NARA guidance page, 'Logbooks of U.S. Navy Ships and Stations, 1941-1983' (Record Group 24) and WWII War Diaries and Other Operational Records (Record Group 38) [other_primary]
    Locator
    archives.gov Navy logbooks guidance page; catalog.archives.gov keyword search attempted 2026-10-01, no digitized hit
    Finding type
    vessel_history
    Finding
    NARA holds Navy deck logs (RG 24) and war diaries (RG 38) for the WWII and early postwar period at the National Archives at College Park. A catalog.archives.gov search for 'LSM-261' returned no digitized item during this research session, but physical holdings covering this hull's 1944-46 commission are a plausible, undigitized archival lead for future research.
    Verification
    unverified
    Role
    archival_lead
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    1944-1946 (prospective record period)
    Limitations
    No digitized LSM-261-specific record was located or reviewed; this row documents an unexplored lead (physical deck logs/war diaries), not a confirmed holding. Deck logs are navigational/operational records and would not be expected to discuss asbestos or construction materials in any case.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-261-lsm261-06

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