Evidence
15 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-15).
-
[1]research packet 722-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-floyd-county-lst762-pkt-722-packet-md
-
[2]DANFS, LST-762 (NHHC live ship-history page) [nhhc_danfs]
- Locator
- DANFS entry, full record (short LST-format entry)
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: laid down 24 June 1944 at Ambridge [DANFS prints 'Amridge'], Pa., by the American Bridge Co.; launched 11 August 1944, sponsored by Mrs. Margaret M. Ewing; commissioned 5 September 1944, Lt. Franklin J. Ewers, USCGR, in command. Asiatic-Pacific theater; assault and occupation of Okinawa Gunto April 1945; occupation duty in the Far East until mid-November 1945; decommissioned 1946; reactivated 3 November 1950 for the Korean War; redesignated Floyd County (LST-762) 1 July 1955 after counties in Georgia, Indiana, Iowa, Kentucky, Texas, and Virginia; Pacific Fleet Amphibious Force with extensive Vietnam service 1965-1968; decommissioned 3 September 1969 and struck from the Navy list. Awards: one battle star WWII, one Korea, three battle stars and a Meritorious Unit Commendation for Vietnam.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1975
- Population
- Wartime Coast Guard-manned crew and embarked troops; Navy crews 1950-1969
- Limitations
- DANFS documents service history, not materials or asbestos content. The entry contains an internal typo - 'Floyd County (LST-672)' in the decommissioning sentence (see correction row ev-14). The Castle/nuclear-test deployment is not mentioned in DANFS; it is documented instead by official JTF-7 records (ev-03, ev-04).
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-01
-
[3]NavSource Online: Amphibious Photo Archive, USS Floyd County (LST-762) page (10/16/160762), incl. linked war-diary PDF 'USS LST-762 Operational Records, 3 November 1950 to 31 August 1951' (160762a.pdf, HTTP 200 verified) [other_primary]
- Locator
- NavSource page 10/16/160762, Specifications block, campaign tables, commanding-officer table, merchant-history section; linked records PDF 160762a.pdf
- Finding type
- vessel_history
- Finding
- Specification block: 2 General Motors 12-567A diesels (900 hp each), single Falk main reduction gear, two propellers 1,700 shp, twin rudders, 3 diesel-drive 100 kW 230 V D.C. ship's service generators, 11.6 kt trial - a diesel plant with no boilers; complement 13 officers / 104 enlisted; troop accommodations 16 officers / 147 enlisted; 1,625 t light / 4,080 t full; 328 ft oa x 50 ft. 'Manned by the Coast Guard during World War II, and by the Navy from 1950 through 1969'; LST Flotilla 29 / Group 85 / Division 171. Chronology: Okinawa Gunto 1-14 April 1945; occupation service 29 September - 18 November 1945; decommissioned 16 July 1946 at Naval Station Tongue Point, Astoria OR; Pacific Reserve Fleet Columbia River Group; recommissioned 3 November 1950 (Lt. William B. Marty, USNR); Korea - Second Korean Winter 27 February - 29 March 1952; China service 8-12 February 1955; named USS Floyd County 1 July 1955; five Vietnam campaign periods 1965-1968; decommissioned 3 September 1969; struck from the Naval Register 1 April 1975; sold for scrapping 1 December 1975 by DRMS; resold Max Rouse & Sons 4 December 1975; converted at Lake Union Drydock Co., Seattle; LST 1 (Landing System Technology Pte. Ltd., Singapore / Lauritz Kloster, Norway) 1976; Petrola 141 (Argonaftis S.A., Panama, Greek flag) 30 June 1978, in service July 1980; sold for scrapping 1988. Commanding-officer table shows USCGR officers 1944-1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1988
- Population
- Ship's company ~117 per spec block; embarked troops up to ~163; Coast Guard crew 1944-1946
- Limitations
- Volunteer-compiled archival page quoting Navy sources, photo captions, and the ship's own operational records; consistent with DANFS where they overlap. Its Vietnam tally (five campaign stars + MUC) differs from DANFS (three battle stars + MUC) - carried in gaps, not adjudicated. Spec data are equipment descriptions only - no asbestos content stated or implied.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-02
-
[4]Martin E.J. & Rowland R.H., 'Castle Series, 1954', DNA 6035F, Defense Nuclear Agency, 1 April 1982 (full text retrieved via DOE OSTI OpenNet; canonical DTRA host www.dtra.mil blocks automated fetch, HTTP 403) [other_primary]
- Locator
- DNA 6035F: TU 7.3.9 organization table; Table 84 'LST-762 operational activities'; YANKEE fallout narrative pp. 306-309; Table 59 personnel exposure; ship-contamination summary; index entries for LST-762
- Finding type
- historical_record
- Finding
- Official JTF-7/NTPR-series documentation of this hull's Operation Castle service: assigned as Special Devices Transport Element, Task Unit 7.3.9.1 - 'Transported shot devices from Enewetak to Bikini; provided inter-atoll surface transportation' (organization table; ship complement 6 officers/122 enlisted, Consolidated List 6/118). Table 84 (compiled from the LST-762 Deck Log): at BRAVO (1 March) moored portside to pier, Parry Island, Enewetak; ROMEO and KOON anchored in Enewetak lagoon; UNION anchored off Bokaidrikdrik Island, Enewetak; departed Enewetak 27 April for Pearl Harbor; in company with LST-975, caught in YANKEE fallout H+35 to H+41 about 700 nmi east-northeast of Bikini on 6-8 May - 'LST-762 was also contaminated by YANKEE fallout while under tow by LST-975 en route to Pearl Harbor'; washdown activated and decontamination continued through the night; LST-762 maximum 0.040 R/hr (LST-975, 0.096 R/hr; CJTF-7 message confirms 0.040 as LST-762's highest reading); entered Pearl Harbor under tow 13 May. Personnel exposure: 124 persons listed for LST-762 on the CASTLE consolidated exposure list; one crewman recorded an exposure slightly in excess of the MPE (logged out on emergency leave 25 February - at least 8 March; no MPE waiver, no special-mission explanation found); about twenty personnel on temporary duty aboard 27 March - 15 April, probably for YAG decontamination.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1953-1954 (report issued 1982)
- Population
- 124 badged ship's company + embarked/TDY personnel (Castle period)
- Limitations
- Radiological documentation, not asbestos - records shipboard fallout contamination, ship positions, and crew dosimetry metadata, not insulation materials. The report states 'No individual exposures are available for this incident' for the 6 May contamination event, and whether the ship's cumulative badge readings included it is unresolved in the source. Table 84's row carries the 0.096 R/hr figure shared by the two-ship group; the ship-specific maximum stated in the narrative and the CJTF-7 message is 0.040 R/hr.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-03
-
[5]Commander Task Group 7.3, 'History of Operation Castle' (1954), JTF-7 official task-group history (scanned original hosted at the RMI Nuclear Documents collection, rminucleardocs.icaad.ngo) [other_primary]
- Locator
- TG 7.3 history: shot-device transport passage; release/casualty narrative; maintenance section; ship-contamination table; transport log
- Finding type
- historical_record
- Finding
- Official task-group history for this hull: 'LST 762 moved the device for BRAVO' - the 1 March 1954 15-Mt shot - because the Bravo device 'was not mounted on a barge but, as equipped, could be better transported by LST' (Belle Grove moved the Romeo/Union/Yankee barge-mounted devices; LST-551 moved portions of Koon). She reported to the forward area 13 July 1953 during the Castle buildup and supported establishment of the Bikini site under CTG 7.2; ran the Enewetak-Bikini passenger/cargo shuttle (transport log lists her Jan-Mar 1954 trips with passenger counts in the hundreds); on occasion performed boat-pool support duties; Holmes and Narver aided her in installing a generator at Navy expense; LST-1146 relieved her during an upkeep period. 'On 22 April ... she suffered a major casualty, fracture of a main propulsion shaft'; retained at Enewetak to tend the Nectar site until Union was fired, then released from the operation - 'LST 762, LST 551 and GIPSY were forced to return to Pearl Harbor for major repairs'; on one engine she could make only 4.6 knots; LST-975, en route from the Western Pacific, was ordered by COMPHIBPAC to rendezvous and escort her, joined her on 4 May (Table 84: sighted 0835, steamed in company, under tow by 13 May) and took her in tow and, 'On 6 May, approximately 700 miles east of Bikini, both LSTs were slightly contaminated by radioactive fallout from YANKEE.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1953-1954
- Population
- Ship's company and shuttle passengers (Castle period)
- Limitations
- Radiological/operational history, not asbestos documentation. Hosted on the ICAAD RMI Nuclear Documents mirror - a scan of the official 1954 task-group history, not a .gov host; OCR text is noisy in places (numbers and ship names occasionally garbled) but the quoted passages are legible and consistent with DNA 6035F. No asbestos, insulation, or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-04
-
[6]U.S. Coast Guard Historian's Office, 'Coast Guard-Manned LST' cutter roster - 'LST (LANDING SHIP, TANK; World War II)' listing [other_primary]
- Locator
- USCG Historian cutter page, LST roster block (alphabetical, LST-762 entry)
- Finding type
- historical_record
- Finding
- The U.S. Coast Guard Historian's office carries LST-762 by name on its official roster of Coast Guard-manned LSTs of World War II - official corroboration of the NavSource statement that the ship was Coast Guard-manned in WWII and of her USCGR commanding officers (Lt. Franklin J. Ewers, Lt. Clemon C. Pearson).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1946
- Population
- Coast Guard crew 1944-1946
- Limitations
- Roster-level listing only - the page names the hull among CG-manned LSTs but carries no per-hull narrative, dates, or materials information. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-05
-
[7]National Archives, 'Navy Deck Logs Available in the National Archives Catalog' - dedicated 'Floyd County (LST-762)' index section [other_primary]
- Locator
- navy-online page, 'Floyd County (LST-762)' collapse panel; monthly catalog.archives.gov ID links 1956-1970
- Finding type
- historical_record
- Finding
- NARA's digitized deck-log index carries a dedicated 'Floyd County (LST-762)' section - metadata 'Commission: September 1944 / Decommission: March 1946; Recommission: November 1950 / Decommission: September 1969' - with monthly deck logs digitized for 1956 through mid-1970, covering the post-Castle and Vietnam-era years (1965-1968 logs are catalog-linked).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1956-1970 digitized; index metadata 1944-1969
- Population
- Ship's company 1956-1970 (log coverage)
- Limitations
- Index-level confirmation of record existence and coverage - the logs themselves were not retrieved or reviewed this session. Digitized coverage starts 1956, so the WWII and Castle-era (1953-54) logs are not in this series (the 1953-54 deck log exists and was cited as a source in DNA 6035F). NARA's 'March 1946' first-decommissioning metadata conflicts with NavSource's 16 July 1946 - carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-06
-
[8]Bureau of Ships, Ships' Data, U.S. Naval Vessels, 1945, Vol. II (NAVSHIPS 250-011), LST design table (shipscribe.com scan) - consolidated with the lst-1-class (LST-1/491/542 series) class profile era analysis [other_primary]
- Locator
- SDB1945v2 LST design table + roster section
- Finding type
- asbestos_application
- Finding
- Class/design documentation for the LST-542 group this hull was built to: diesel-propelled tank landing ship (2x GM 12-567A diesels per BuShips design table and NavSource spec block). No steam plant, so the asbestos-relevant systems were era-standard applications rather than boiler lagging: diesel exhaust lagging, engine-room thermal/acoustic insulation, gaskets and packing, electrical insulation and cable, deck coverings, accommodation insulation, and brake/friction linings on winches and windlass.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1944-1945
- Population
- Construction trades (Ambridge, 1944); wartime and postwar crews
- Limitations
- Class/era and design inference only - no hull-level material schedule, insulation spec, or survey exists in the public record for this ship; BuShips tables describe machinery and dimensions, not asbestos content. Post-Navy conversion (1975-76) and foreign service may have replaced original materials. Establishes no quantities and no exposure for any individual.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-07
-
[9]Christman v. Dravo Corp., 319 Pa. Super. 378, 466 A.2d 209 (Pa. Super. Ct. 1983) (OpenJurist text; reporter citation verified) [court_record]
- Locator
- OpenJurist opinion text, discussion of Dravo's interrogatory answers (Nos. 7, 13, 17)
- Finding type
- litigation_documented
- Finding
- Discovery-stage admission covering wartime LST construction at a sibling yard: the opinion recites that Dravo 'admitted in its answers to appellant's interrogatories that from 1941 to 1945 the major portion of the ships that it built (over 145 LST-type vessels) were for the Bureau of Ships of the United States Navy and asbestos was used as pipe insulating material in the construction of motor vessels at the Neville Island building docks' - the same inland-yard WWII LST program in which this hull was built at American Bridge, Ambridge PA.
- Verification
- verified
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1945 (facts); 1983 (opinion)
- Population
- LST construction trades at inland yards (class context)
- Limitations
- A SIBLING-YARD admission - Dravo's Neville Island operation, not this hull's builder (American Bridge, Ambridge); it documents era LST-construction practice, not materials aboard this ship. Litigation stage is pleading/discovery as recited in a defense summary-judgment win (affirmed on appeal) - the interrogatory admission is record content quoted by the court, not a trial finding about this vessel; the SJ disposition is a merits negative for that plaintiff, not exposure evidence for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-08
-
[10]Corn JK, Starr J. 'Historical perspective on asbestos: policies and protective measures in World War II shipbuilding.' Am J Ind Med 12(4):359-373 (1987) [other_primary]
- Locator
- AJIM 12(4):359-373; DOI 10.1002/ajim.4700120402
- Finding type
- asbestos_application
- Finding
- Peer-reviewed scholarship documents that WWII-era U.S. shipyards extensively installed asbestos-containing insulation, lagging, and gaskets in naval and merchant construction - the era and program context in which this hull was built (1944, American Bridge Co., Ambridge PA).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1940-1945
- Population
- WWII shipyard workforce (era context)
- Limitations
- Era-level scholarship only; the source does not name this hull or class and does not establish that any specific material aboard this ship contained asbestos. The diesel plant (no boilers) narrows the exposure-relevant scope relative to steam vessels.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-09
-
[11]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO HRD-80-2 product page and abstract
- Finding type
- gov_survey
- Finding
- GAO documented the Navy's asbestos-protection program: asbestos insulation was in widespread Navy shipboard use, and the 1975 standing policy removed/replaced only insulation that was damaged or had to be removed for repairs, modified in 1979 to selective replacement in high-maintenance areas - meaning original-era insulation typically remained in place on active Navy hulls for decades; systematic substitution did not begin until the early 1970s.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1979 (report); policy window 1970s
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level Navy documentation; the policy period overlaps this hull only marginally - she decommissioned September 1969, lay in the reserve fleet, and left Navy custody at the December 1975 DRMS sale. Context for the era fleet picture only. Full text not retrieved (gao.gov returns HTTP 403 to automated fetch); content summarized from the GAO product page.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-10
-
[12]American Bridge Company official corporate history (americanbridge.net) [other_primary]
- Locator
- americanbridge.net About > History, wartime-production section
- Finding type
- historical_record
- Finding
- This hull's builder, documented by the builder itself: 100% of American Bridge capacity went to National Defense projects 1941-1945, including 199 LSTs manufactured at Ambridge, PA (plus aviation repair vessels, carrier components, cargo ships, tankers, and barges) - the inland Ohio River marine operation where this hull was assembled before final fitting-out downriver.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1945
- Population
- Ambridge yard workforce 1941-1945
- Limitations
- Builder's own marketing-history record - reliable for yard output figures, silent on materials and asbestos; not independent industrial-hygiene documentation of the Ambridge yard.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-11
-
[13]Batch-7297 search ledger (this record): DANFS/NHHC live page; NavSource 160762 + war-diary PDF; DNA 6035F (OSTI); TG 7.3 history (ICAAD RMI Nuclear Documents); USCG Historian roster; NARA navy-online index; NVR; MARAD ShipHistory; CourtListener (blocked - fleet daily quota); NIOSH HHE index; marketing/litigation web sweep [other_primary]
- Locator
- search_ledger rows sl-uss-floyd-county-lst762-01 through -14
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS Floyd County / LST-762 was found in the public sources searched (see search_ledger). CourtListener could not be queried this session - the authenticated helper reported the fleet-wide daily quota exhausted (~11.3 h wait), so hull-name and hull-number docket sweeps are logged as blocked, not as a negative result. Live-web sweeps returned only law-firm marketing listicles asserting asbestos aboard without primary sourcing (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 - a 1944 hull is era-consistent with installed ACM, and a sibling-yard admission documents asbestos pipe insulation in the same LST program; the 1975-76 commercial conversion and foreign service may have altered original materials. Does not establish or defeat any claim of exposure or legal eligibility. The CourtListener sweep remains an open check pending quota reset.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-12
-
[14]NARA Guide to Federal Records: RG 374 (Defense Nuclear Agency - JTF-7/Operation Castle records), with related leads in RG 24 (Navy deck logs: WWII and 1953-55 series precede the digitized index) and RG 19 (BuShips contract/specification files for the LST program) [other_primary]
- Locator
- NARA RG guides: /groups/374.html, /groups/024.html, /groups/019.html (all verified live); navsource.net 160762a.pdf
- Finding type
- historical_record
- Finding
- Archival leads (not retrieved - require research-room or reproduction order): NARA RG 374 holds records relating to joint task force participation in Operation Castle 1952-54 - the JTF-7/TG 7.3 record series from which DNA 6035F drew, including the ship's 1953-54 deck log cited as Table 84's source; RG 24 holds the WWII and early-1950s deck logs that precede the digitized 1956-1970 series; RG 19 BuShips files cover LST contract and specification material that could contain outfitting/insulation schedules; DRMS sale and Lake Union Drydock conversion work records (1975-76) would document post-Navy material disturbance; the NavSource-hosted 'LST-762 Operational Records' PDF (Nov 1950 - Aug 1951) is digitized but not yet text-reviewed.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-03
- 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-floyd-county-lst762-13
-
[15]DANFS entry internal typo + secondary-source error set, resolved against official JTF-7 records (DNA 6035F; TG 7.3 history) [nhhc_danfs]
- Locator
- DANFS entry (typo); en.wikipedia.org/wiki/USS_Floyd_County (secondary, not cited as evidence); DNA 6035F Table 84 + TG 7.3 history (resolution source)
- Finding type
- vessel_history
- Finding
- Corrections of record: (1) DANFS's own decommissioning sentence misprints the hull number as 'Floyd County (LST-672)' - the entry is for LST-762 (LST-672 is a different hull); (2) Wikipedia's Castle passage dates the Bravo detonation '1 March 1955' and spells 'Eniwitok Atoll' - the official record fixes Bravo at 1 March 1954 (detonation 0645 local) and places the ship moored portside to the pier at Parry Island, Enewetak Atoll, at shot time; (3) Wikipedia infobox 'Decommissioned: March 1946' (also the NARA index metadata) conflicts with NavSource's 16 July 1946 - see gaps.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1954
- Limitations
- Correction applied by direct source comparison; the DANFS typo and Wikipedia's year/spelling errors are not repeated in this record's fact fields. Item (3) is documented but unresolved - two plausible dates stand in the sources.
- Atlas source
- true
- Evidence ID
- ev-uss-floyd-county-lst762-14