Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
-
[1]research packet 877-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-1256-pc1256-pkt-877-packet-md
-
[2]NavSource Online, Submarine Chaser Photo Archive, PC-1256 [other_primary]
- Locator
- PC-1256 page, timeline and specifications
- Finding type
- vessel_history
- Finding
- PC-1256 is identified as a PC-461-class submarine chaser. NavSource records this hull as laid down 28 October 1943 by Luders Marine Construction Co. at Stamford, Connecticut; launched 21 May 1944; commissioned USS PC-1256 on 27 October 1944; struck from the Naval Register on 12 April 1946; transferred to the War Shipping Administration on 15 March 1948; sold to Portugal as NRP São Tomé (TM/P 585); and scrapped in 1970.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1970
- Population
- This hull
- Limitations
- Ship-specific timeline and specifications; the page is an authoritative naval-history archive rather than a current Navy register. It does not document asbestos, a decommissioning date, or the final scrapping transaction record beyond the stated year.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1256-pc1256-01
-
[3]Naval History and Heritage Command, United States Pacific Fleet Organization, 1 May 1945 [nhhc_danfs]
- Locator
- Fleet organization table, PC 1256 entry
- Finding type
- historical_record
- Finding
- The official 1 May 1945 Pacific Fleet organization list includes PC 1256 and identifies Lt. B. W. Partridge, USNR, as commanding officer.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-05-01
- Population
- USS PC-1256 and commanding officer in the Pacific Fleet organization
- Limitations
- Confirms the hull's presence in the Pacific Fleet organization on the listed date and the listed commanding officer; it does not provide a complete service history or any asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1256-pc1256-02
-
[4]NHHC DANFS, USS Liberty (AGTR-5), III [nhhc_danfs]
- Locator
- USS Liberty narrative, July 1966 passage near Luanda
- Finding type
- vessel_history
- Finding
- The DANFS history of USS Liberty records the Portuguese patrol vessel São Tomé (P.585) as ex-PC-1256 and describes an encounter with it off the mouth of the Congo in July 1966.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1966
- Population
- Former PC-1256 in Portuguese service
- Limitations
- Provides an independent NHHC/DANFS confirmation of the Portuguese identity and existence of the former hull in 1966; it does not establish the transfer date, later disposition, or asbestos status.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1256-pc1256-03
-
[5]U.S. General Accounting Office, HRD-80-2, Navy's Efforts To Protect Workers From Asbestos Exposure (18 October 1979) [gao]
- Locator
- Report summary and Navy policy/use sections
- Finding type
- gov_survey
- Finding
- GAO reported that Navy officials said all ships contained some asbestos in components such as clutches and electric cables, while thermal insulation was the Navy's major use of asbestos; the report also describes Navy policy to remove or replace asbestos insulation when damaged or removed for repairs.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1975-1979 review period
- Population
- Navy ships and shipyard workers generally
- Limitations
- Navy-wide program evidence based on review of Long Beach and Norfolk Naval Shipyards. It does not name PC-1256, establish that any cited component was aboard this hull, identify quantities or locations, or establish exposure or remaining material.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1256-pc1256-04
-
[6]NIOSH/CDC, Shipyards, Maritime Safety and Health [other_primary]
- Locator
- Shipyards overview, hazards paragraph
- Finding type
- gov_survey
- Finding
- NIOSH identifies asbestos as one of the chemical hazards encountered in shipyard manufacture, repair, maintenance, and dismantling work.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- General occupational-health context
- Population
- Shipyard workers generally
- Limitations
- General shipyard occupational-health context; it does not concern Luders Marine Construction Co., PC-1256, its crew, or any particular material aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1256-pc1256-05
-
[7]Official-source and archival search conducted for this batch; no ship-specific asbestos record located [other_primary]
- Locator
- Batch source review and search ledger
- Finding type
- abatement_record
- Finding
- No public ship-specific asbestos survey, abatement contract, hazmat disclosure, asbestos inventory, or other primary record documenting asbestos aboard USS PC-1256 was located in the sources reviewed.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1970 and public records through 2026-10-03
- Population
- USS PC-1256
- Limitations
- A negative public-source search is not proof that asbestos was absent. The accessible record does not establish whether original materials survived, were removed, or were tested; this finding is not a merits determination and does not address individual exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1256-pc1256-06