USS LST-721

Name
USS LST-721
Hull designation
LST-721
Vessel class
LST-1
Evidence tier
Tier 2
Evidence entries
9
Record ID
uss-lst-721-lst721
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-lst-721-lst721

Evidence

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

  1. [1]research packet 715-packet.md (3 sources cited) [other_primary]
    Finding type
    vessel_history
    Finding
    Identity packet verdict: VERIFIED (identity only)
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Evidence ID
    uss-lst-721-lst721-pkt-715-packet-md
  2. [2]DANFS, 'LST-721' (NHHC, history.navy.mil) [nhhc_danfs]
    Locator
    DANFS entry 'LST-721', full text
    Finding type
    vessel_history
    Finding
    DANFS: LST-721 was laid down 3 July 1944 at Jeffersonville, Ind., by Jeffersonville Boat & Machine Co.; launched 7 August 1944, sponsored by Mrs. Mary L. Hogan; commissioned 9 September 1944. Assigned to the Asiatic-Pacific theater: Visayan Island landings (March-April 1945) and the Balikpapan operation (June-July 1945). Postwar occupation duty in the Far East until mid-November 1945. Decommissioned 24 June 1946; struck from the Navy list 15 August 1946; reinstated 21 November 1946; restruck 10 June 1947; sold 8 March 1948 to Green's Bayou Transports, New Orleans, for non-self-propelled operation. Earned two battle stars for World War II service.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-02
    Study period
    1944-1948
    Limitations
    Official NHHC/DANFS history; establishes identity, construction, campaigns, awards, and disposition. Contains no asbestos, insulation, or materials information; supports no asbestos claim.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-721-lst721-01
  3. [3]NavSource Online: Amphibious Photo Archive, 'USS LST-721' (navsource.net archives/10/16/160721.htm, page last updated 9 May 2025) [other_primary]
    Locator
    Per-hull timeline, specification block, commanding-officer table, awards block, and photo captions
    Finding type
    vessel_history
    Finding
    NavSource Amphibious Photo Archive per-hull page (LST-542 class): laid down 3 July 1944 at Jeffersonville Boat & Machine Co., Jeffersonville IN; launched 7 August 1944; commissioned 9 September 1944, LT Robert B. Safford, USNR, in command. Campaigns with dates: Visayan Island landings 18 March and 29 March-3 April 1945; Balikpapan operation 26 June-9 July 1945; occupation service in the Far East 28 September-13 November 1945; decommissioned 24 June 1946; struck 15 August 1946; reinstated 21 November 1946; restruck 10 June 1947; sold 8 March 1948 to Green's Bayou Transports, New Orleans, for non-self-propelled operation. Specifications: 1,625 t light / 4,080 t full load / 2,366 t beaching; 328 ft oa; 50 ft beam; 2 x GM 12-567A 900 hp diesels, Falk main reduction gear, twin screws 1,700 shp, 11.6 kt; complement 13 officers / 104 enlisted; troop accommodations 16 officers / 147 enlisted. Commanding officers: LT Safford (to 29 Nov 1945), LT Donald H. Brown (to 15 Mar 1946), LCDR Robert P. Rudolph (to decommissioning 24 Jun 1946). Awards include two battle stars, Navy Occupation Service Medal (Asia clasp), Philippine Presidential Unit Citation, Philippine Liberation Medal. Photographic record includes NHHC photo NH 83638 (ship entering San Francisco Bay, c.1945-46), an AWM photo of the ship at Blue Beach, Morotai, and a captioned series placing the hull among LSTs beached at Mindoro (likely CTU 78.7.2 unloading the 41st Infantry Division at Mangarin Bay, 8-10 February 1945).
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-02
    Study period
    1944-1948
    Limitations
    Volunteer-maintained photo archive; every overlapping date agrees with DANFS. Specification block is class-standard data; the Mindoro photo identification is the contributor's inference (flagged as such in its own caption). Contains no asbestos statement; supports no asbestos claim.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-721-lst721-02
  4. [4]Australian War Memorial, collection item C205161 (accession 109228) [museum_official]
    Locator
    AWM collection record C205161, caption and place fields (Halmahera Island, Morotai Island)
    Finding type
    vessel_history
    Finding
    Australian War Memorial collection photograph, accession 109228 (collection item C205161), captioned: 'MOROTAI. 12 JUNE 1945. LANDING SHIP, TANK (LST) 721, MOVING INTO BLUE BEACH TO LAND TROOPS OF 7 DIVISION.' An official wartime photograph independently corroborating LST-721 at Morotai on 12 June 1945 landing Australian 7th Division troops - consistent with staging for the Balikpapan operation that began 1 July 1945.
    Verification
    verified
    Role
    context
    Documentation level
    ship_specific
    Accessed
    2026-10-02
    Study period
    1945-06-12
    Population
    LST-721 crew and embarked Australian 7th Division troops, June 1945
    Limitations
    Wartime photographic record; establishes the hull's presence and tasking at Morotai on 12 June 1945. Contains no asbestos or materials information.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-721-lst721-03
  5. [5]Bureau of Ships, Ships' Data, U.S. Naval Vessels, Vol. II, NAVSHIPS 250-011 (15 April 1945), LST design table (Shipscribe scan) [other_primary]
    Locator
    NAVSHIPS 250-011, LST (Landing Ships, Tank) section, design/characteristics table
    Finding type
    asbestos_application
    Finding
    Design-level inference: LST-721 is an LST-542-design-group hull (NavSource class assignment; BuShips grouping LST542-931). The Bureau of Ships Ships' Data 1945 Vol. II (NAVSHIPS 250-011) LST design table records the class-standard plant as 2 x GM 12-567A diesels on twin shafts (about 1,700 shp) - a diesel plant with no boilers and no steam propulsion. Era-consistent asbestos-relevant applications aboard this diesel type concentrate in diesel exhaust and engine-space lagging, gaskets and valve packing, deck coverings and tile, bulkhead and accommodation insulation, and winch/crane brake linings - not boiler or steam-line lagging.
    Verification
    inferred
    Role
    supporting
    Documentation level
    class_or_era
    Accessed
    2026-10-02
    Study period
    1944
    Population
    Construction trades (Jeffersonville Boat & Machine, 1944); ship's company 13 officers / 104 enlisted
    Limitations
    Design-table data for the LST type; does not name this hull and contains no asbestos itemization. The applications list is era inference, not a ship-proven material schedule; establishes neither presence nor absence of asbestos aboard this hull, nor quantity or condition.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-721-lst721-04
  6. [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
    Article landing page, AJIM 11(3):359-373 (Wiley)
    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 World War II - the era and program under which this 1944 LST was mass-produced at an inland 'cornfield' yard - and that wartime demand drove unprecedented asbestos utilization aboard naval and merchant hulls.
    Verification
    verified
    Role
    context
    Documentation level
    class_or_era
    Accessed
    2026-10-02
    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, this builder, or the LST type, 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-lst-721-lst721-05
  7. [7]Batch-7252 search ledger (this record): NHHC DANFS; NavSource; AWM C205161; NARA catalog; NVR; MARAD ShipHistory; CourtListener API v4; live-web search [other_primary]
    Locator
    search_ledger rows sl-uss-lst-721-lst721-01 through sl-uss-lst-721-lst721-10
    Finding type
    historical_record
    Finding
    No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or docketed case naming LST-721 was found in the sources searched. Authenticated CourtListener opinion and docket (RECAP) queries for 'LST-721' returned zero results; the Naval Vessel Register carries no entry (hull disposed 1948, outside NVR's coverage of extant/recent vessels - the LST-721 detail URL redirects to the NVR index); the hull was sold to private commercial interests in 1948 and never entered MARAD/NDRF custody; and DANFS, NavSource, and the AWM record contain no asbestos or insulation-material statement.
    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 - a 1944 combat-service LST is era-consistent with asbestos-containing insulation, gaskets, and deck coverings. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-721-lst721-06
  8. [8]DANFS, 'LST-721' disposition line (controlling source); Thai-hull collision observed in general web search results [nhhc_danfs]
    Locator
    DANFS disposition sentence; web-search result set for 'LST-721'
    Finding type
    historical_record
    Finding
    Name/pennant collision screening: live-web hits for 'LST-721' include the Royal Thai Navy's HTMS Sichang, which carries pennant number 721 (secondary listings describe a Sichang-class amphibious ship commissioned in RTN service in 1987). That is a different vessel bearing a coincidental pennant number; DANFS records this hull as sold to Green's Bayou Transports for non-self-propelled operation on 8 March 1948, which controls for this record.
    Verification
    partial
    Role
    correction
    Documentation level
    context_only
    Accessed
    2026-10-02
    Study period
    2026-10-02
    Limitations
    The DANFS disposition is verified and controls; the Thai hull's particulars rest on non-authoritative secondary listings and were not independently verified - they are recorded only so downstream users do not conflate the two hulls.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-721-lst721-07
  9. [9]U.S. National Archives catalog search, '"LST-721"' (120 file units, WWII War Diaries / operational records series and related) [other_primary]
    Locator
    catalog.archives.gov search results, file-unit level (e.g., NAIDs 139779900, 139963856, 77464490, 633406548, 633404030)
    Finding type
    historical_record
    Finding
    Archival lead (catalog-level, not surveyed): the NARA catalog returns 120 digitized file units matching 'LST-721', including Commander LST Group 66 war diaries covering September 1944-December 1945 (the group whose LSTs were photographed with this hull beached at Mindoro in February 1945 per the NavSource caption), unit action reports for the Panay operation of 18-19 March 1945 (COMTASK-Unit 78.3.2, NAID 633406548), and COM LST GR 66 enemy-aircraft action reports at Lingayen Gulf; WWII ship deck logs are held in RG 24. These records likely document the hull's movements but were not surveyed page-by-page.
    Verification
    unverified
    Role
    archival_lead
    Documentation level
    context_only
    Accessed
    2026-10-02
    Study period
    1944-1946 records
    Limitations
    Catalog-hit-level mapping only; no page-level retrieval performed and no box/digitized-page survey completed. Contents may include this hull's movements; nothing in this row is an asbestos finding.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-721-lst721-08

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