Evidence
4 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-4).
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[1]research packet 893-packet.md (3 sources cited) [museum_official]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-464-pc464-pkt-893-packet-md
-
[2]NavSource Online, Submarine Chaser Photo Archive, PC-464 (archive page; live page verified) [museum_official]
- Locator
- PC-464 history and specifications block
- Finding type
- vessel_history
- Finding
- NavSource's PC-464 archive identifies the hull as a PC-461-class submarine chaser, laid down 8 August 1941 by George Lawley and Sons, Inc., Neponset, Massachusetts; launched 27 February 1942; and commissioned 15 May 1942. The archive reports Caribbean/South American convoy escort, reassignment to the Pacific Fleet, participation in the October 1944 Leyte invasion, and sale on 12 January 1947; it also states that no DANFS history is currently available for PC-464.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1947
- Limitations
- NavSource is an archival collection, not a Navy vessel register. This row supports basic identity and reported service chronology only; it contains no asbestos, insulation, engineering-work, survey, abatement, exposure, causation, or legal-eligibility finding. The reported final Navy dates and sale require confirmation against a primary register.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-464-pc464-01
-
[3]National Archives, Special List No. 44: List of Logbooks of the U.S. Navy, 1801-1947, by Ship Numbers [other_primary]
- Locator
- PC-461 through PC-470 table entries for PC-464
- Finding type
- historical_record
- Finding
- NARA's Special List 44 identifies two surviving logbook runs for PC-464: 15 May 1942 through 31 December 1942 and 20 February 1943 through 31 May 1945.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- PC-464 officers and crew represented in contemporaneous logbooks
- Limitations
- The list establishes NARA's logbook holdings and their date spans; the underlying logs were not retrieved or reviewed. It does not establish locations, repair work, materials, asbestos presence, individual exposure, causation, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-464-pc464-02
-
[4]Batch-7839 research ledger: NARA Special List 44; NavSource PC-464 archive; live NHHC/DANFS and CourtListener search attempts [other_primary]
- Locator
- search_ledger rows sl-uss-pc-464-pc464-01 through sl-uss-pc-464-pc464-06
- Finding type
- historical_record
- Finding
- No public ship-specific asbestos record was located in the reviewed sources: no asbestos survey, abatement record, hazmat disclosure, or primary engineering specification naming PC-464 was found. The NARA logbook list and NavSource archive contain no asbestos-material finding.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- research reviewed 2026-10-03
- Limitations
- This is a documented search result, not proof that asbestos was absent aboard the vessel. CourtListener returned no search payload because the authenticated fleet helper's shared pacing budget was spent; that unresolved litigation sweep is separately logged as blocked, not counted as a no-result search. No inference from construction era, class, or diesel propulsion is made.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-464-pc464-03