Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 835-packet.md (1 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED (hull confirmed; queue name is a service-prefix artifact
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-usat-lst833-pkt-835-packet-md
-
[2]DANFS, LST-833 - construction, sponsor, commissioning, WWII Okinawa service, occupation/China duty, decommissioning, striking, and 1948 sale (live NHHC page verified this session) [nhhc_danfs]
- Locator
- DANFS LST-833 entry, complete text (two short paragraphs + battle-star line)
- Finding type
- vessel_history
- Finding
- Documented for this hull (DANFS, verbatim facts): laid down 28 August 1944 at Ambridge, Pa., by the American Bridge Co.; launched 16 October 1944; sponsored by Mrs. N. B. Ornitz; commissioned 10 November 1944. During World War II assigned to the Asiatic-Pacific theater; participated in the assault and occupation of Okinawa Gunto April through June 1945. After the war performed occupation duty in the Far East and service in China until early January 1946. Returned to the United States; decommissioned 2 May 1946; struck from the Navy list 10 June 1947. On 13 May 1948 sold to Alexander Shipyards, Inc., New Orleans, La., for operation. LST-833 earned one battle star for World War II service.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1948
- Population
- American Bridge construction trades (1944); commissioned crew (1944-46)
- Limitations
- Ship-specific history only; no asbestos or material content. The DANFS entry is short and covers only the Navy period - it contains no mention of the post-Navy Army Transportation Service (USAT) operation that NavSource reports, and gives no detail on the ship's activities after the 1948 sale.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-01
-
[3]NavSource Online: Amphibious Photo Archive, USAT LST-833 ex USS LST-833 - class, command, unit assignments, campaign dates, occupation/China medal periods, Army transfer, sale, specifications (live page verified this session) [other_primary]
- Locator
- NavSource 10/16/160833.htm - header block, campaign/medal tables, CO table, specifications block
- Finding type
- vessel_history
- Finding
- NavSource record for this hull: LST-542 class tank landing ship; laid down 28 August 1944 at American Bridge Co., Ambridge, PA; launched 16 October 1944; commissioned USS LST-833 10 November 1944, LT. John T. O'Brien, USN, in command (sole CO listed, 10 Nov 1944 - 2 May 1946). Assigned to the Asiatic-Pacific Theater: LST Flotilla Twenty-Five (CAPT. H.E. Richter), LST Group Seventy-Four (CDR. J.G. Farnsworth), LST Division One Hundred Forty-Eight. Asiatic-Pacific Campaign: Okinawa Gunto operation, assault and occupation, 1 April - 18 June 1945. Postwar Navy Occupation Service Medal and China Service Medal (extended) periods both 25 September 1945 - 5 January 1946. Decommissioned 2 May 1946; struck from the Naval Register 10 June 1947; one battle star for WWII. 'Transferred to the US Army Transportation Service, date unknown, commissioned USAT LST-833. Sold for operation, 13 May 1948, to Alexander Shipyards, Inc., New Orleans, LA. Final Disposition, fate unknown.' Spec block: 1,625 t light / 4,080 t full / 2,366 t beaching; 328 ft o.a., 50 ft beam; 11.6 kt trial; complement 13 officers / 104 enlisted; troops 16 officers / 147 enlisted; two GM 12-567A 900 hp diesels, single Falk main reduction gear, 2 propellers 1,700 shp, twin rudders; radio call sign NHQN.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1948
- Population
- American Bridge construction trades (1944); Navy crew (1944-46); Army Transportation Service crew (undated); Alexander Shipyards/commercial hands (1948+)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its Navy-period milestones match DANFS exactly. Its USAT claim is UNDATED and its sequence (Army transfer vs. 13 May 1948 sale to a commercial yard) is unstated; no other source located confirms the Army Transportation Service operation. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-02
-
[4]U.S. Navy Bureau of Personnel, 'Decorations, Medals, Ribbons, Badges of the United States Navy, Marine Corps and Coast Guard 1861-1948' (1948), engagement-star participation appendix (archive.org scan, text layer) [other_primary]
- Locator
- 1948 BuPers decorations volume, amphibious engagement-star table, LST 833 row (P34-1, 1 Apr 45 - 18 Jun 45)
- Finding type
- historical_record
- Finding
- Official corroboration of the campaign credit: the BuPers engagement-star appendix lists 'LST 833' with engagement code P34-1 (Okinawa Gunto operation), participation dates 1 April 1945 - 18 June 1945 - matching the campaign line and single battle star in DANFS/NavSource.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945 (period covered); publication 1948
- Population
- Crew aboard during Okinawa operation (Apr-Jun 1945)
- Limitations
- Government-published awards reference scanned from print - OCR text layer is staggered (dates and codes sit on separate lines) but the LST-833 row is legible and internally consistent. Confirms campaign participation only; no asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-03
-
[5]NHHC photographic record NH 74311, 'USS LST-833' - photographed circa 1945, courtesy of Mr. D.M. McPherson, Corte Madera, California, 1971 (live NHHC catalog page verified this session) [nhhc_danfs]
- Locator
- NHHC online image catalog, NH 74311 catalog record
- Finding type
- historical_record
- Finding
- The NHHC photo catalog holds one identified image of this hull: NH 74311, USS LST-833, 'Photographed circa 1945,' received by NHHC courtesy of Mr. D.M. McPherson of Corte Madera, California, in 1971. This is the only NHHC-cataloged image of the hull located - physical-presence documentation, not a work or material record.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- circa 1945
- Population
- crew visible-era population (circa 1945)
- Limitations
- Archival lead only: a single dated-at-'circa 1945' image with no location caption; documents the hull's existence/appearance in service, not any work performed aboard and no material content.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-04
-
[6]National Guard Militia Museum of New Jersey (njmilitiamuseum.gov), oral-history interview with veteran Grover L. Shealy - service aboard USS LST-833 [museum_official]
- Locator
- njmilitiamuseum.gov/grover-shealy interview transcript, post-Marts service paragraph
- Finding type
- historical_record
- Finding
- Crew-presence record: the New Jersey National Guard militia museum's oral-history interview of Gunner's Mate Grover L. Shealy states that after USS Marts (DE-174) 'he moved on to the USS LST-833, then to Guantanamo Bay, Cuba, for duty.' His account describes Pacific service consistent with the ship's documented period: during the Battle of Okinawa he 'was on a ship that had 450 to 500 Marines aboard' picked up at Guadalcanal, with a further troop lift from Saipan to Okinawa, and he witnessed a kamikaze strike on a cruiser. Shealy's medal list (Asiatic-Pacific Campaign, Occupation, WWII Victory) matches the ship's documented awards.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1946
- Population
- GM Grover L. Shealy; LST-833 crew and embarked Marines (1945 timeframe)
- Limitations
- Self-reported oral history recorded decades after the fact - the interview does not explicitly state that the Okinawa episodes occurred aboard LST-833 specifically (his chronology spans several ships); it firmly establishes only that a named veteran served aboard this hull in the Pacific-war timeframe. A veteran's presence aboard is not an exposure record and this row makes no asbestos claim for Shealy or any individual.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-05
-
[7]Consolidated era inference - BuShips Ships' Data 1945 v2 LST-542-group machinery data (as summarized in lst-1-class profile; source PDF now 404 at shipscribe.com, see search_ledger sl-uss-usat-lst833-13) + NavSource spec block for this hull + era amphibious-ship construction practice [other_primary]
- Locator
- NavSource spec block; lst-1-class class profile ev-03 era-inference summary
- Finding type
- asbestos_application
- Finding
- Era/design inference for this diesel-powered LST-542-class hull (built Aug-Nov 1944): the plant carries no boilers, so the steam/boiler lagging pathway does not apply. Asbestos-relevant applications for a ship of this type and period are GM diesel exhaust lagging and gaskets, engine-room thermal and acoustic insulation, deck coverings/tile, bulkhead and accommodation insulation, and winch/crane brake linings. Wartime naval construction of this era commonly used asbestos-containing insulation, gasket, and packing products (GAO HRD-80-2 program context).
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1944-1948 (hull's documented service window)
- Population
- American Bridge construction trades (1944); Navy crew (1944-46); Army Transportation Service crew (undated); post-1948 commercial hands
- Limitations
- Class/era inference only - no hull-specific insulation survey, material schedule, or work package located for LST-833. Names era-standard applications, not confirmed installed materials; establishes no quantities, no present-day presence, and no exposure for any individual.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-06
-
[8]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - spanning this hull's entire construction (1944) and service era (1944-46 Navy; undated Army period to 1948 sale).
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403, confirmed 2026-10-03) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-07
-
[9]Batch-7375 search ledger (this record): live NHHC DANFS + NHHC photo catalog; NavSource (live); BuPers 1948 decorations volume (archive.org); NJ militia museum oral history; Wikipedia list/redlink checks; uboat.net; corporate-successor page; CourtListener (BLOCKED - daily quota); NVR (no entry); shipbuildinghistory (404); shipscribe SDB (404); NARA digitized deck logs (not listed); secondary asbestos sweep (marketing-only) [other_primary]
- Locator
- search_ledger rows sl-uss-usat-lst833-01 through -15
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS LST-833 / USAT LST-833 was found in the public sources searched. CAVEAT: CourtListener could not be queried this session - the fleet helper (cl-auth-search.py) reported the daily quota exhausted with a ~9.8-hour reset wait (exit 2); logged as blocked in search_ledger, not as a negative result. Secondary web sweeps surfaced no qualifying case and no dedicated marketing page asserting asbestos aboard this hull - the only marketing hit located was an LST-883 page (mesotheliomasymptoms.com) that pasted LST-833's service text in error; excluded by source policy.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - and the litigation repository search is a genuine open gap (throttled, not run). Deck logs, American Bridge work packages, Army Transportation Service records, and any post-1948 commercial/scrapping records are undigitized or unlocated leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-08
-
[10]Naming/designation cross-check: DANFS (LST-833, no name); NavSource (page titled 'USAT LST-833 ex USS LST-833'); Wikipedia List of United States Navy LSTs ('USS LST-833', redlink); Wikipedia List of ships of the United States Army ('USAT LST-833', redlink); class profile (LSTs hull-number-only until 1 July 1955 county naming, which postdates this hull's 1947 striking) [other_primary]
- Locator
- DANFS LST-833 entry; NavSource 10/16/160833.htm header; Wikipedia LST list and Army-ships list redlinks; lst-1-class profile designations field
- Finding type
- historical_record
- Finding
- CORRECTION: this hull was never formally named. It served as USS LST-833 (LSTs carried hull-number designations only until the 1 July 1955 county-naming order - which postdates this ship's 1947 striking). 'USAT' is the prefix for United States Army Transport, not a name: NavSource reports the hull was transferred to the US Army Transportation Service at an unknown date and 'commissioned USAT LST-833.' The label 'USS USAT (LST-833)' used in some registries (and in this batch manifest) is a display artifact of treating the Army-era designation as a name - the vessel never held the name 'USAT' under the U.S. Navy.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1946-1955 (naming-convention window)
- Limitations
- Corrects a naming/registry artifact, not a material claim. The underlying Army-service event itself rests on a single secondary source (NavSource, undated) - the correction of the NAME is solid; the Army operation it encodes remains partial.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-09
-
[11]uboat.net Allied Warships, USS LST 833 (LST 833) - build/order dates and service end (secondary database; live page verified this session) [other_primary]
- Locator
- uboat.net/allies/warships/ship/11893.html data table
- Finding type
- vessel_history
- Finding
- Secondary database record consistent with DANFS/NavSource: USS LST 833, LST (Mk 2) class, pennant LST 833; built by American Bridge Co., Ambridge, PA; 'Ordered, 9 Dec 1943'; laid down 28 Aug 1944; launched 16 Oct 1944; commissioned 10 Nov 1944; end service 2 May 1946 (decommissioned); sold 13 May 1948.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1948
- Limitations
- Volunteer secondary database - corroborates dates already established by DANFS/NavSource and adds the 9 December 1943 contract-order date, which no primary source located confirms (carried in gaps, not asserted as verified). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-usat-lst833-10