Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
-
[1]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, Pocahontas IV (YT-266) [nhhc_danfs]
- Locator
- Opening history paragraph; NHHC indexed text
- Finding type
- vessel_history
- Finding
- The Navy vessel was named Pocahontas (YT-266) on 4 July 1942; its pre-Navy name appears as Port Blakeley in NHHC. The name 'USS Port Blakeley' is not the Navy service name.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- The indexed NHHC page was readable through search results but the live page returned HTTP 404 on direct retrieval. This row establishes identity, not materials aboard or exposure. NHHC's pre-Navy spelling differs from the Maritime Commission cost-table index.
- Atlas source
- true
- Evidence ID
- ev-uss-port-blakeley-yt266-01
-
[2]U.S. Maritime Commission, Cost of War-Built Vessels, 1936 to 1946, indexed scan [other_primary]
- Locator
- Birchfield Boiler Works table, MC-433 row; search-index extract
- Finding type
- historical_record
- Finding
- A U.S. Maritime Commission cost table identifies MC-433, Birchfield Boiler Works, Tacoma, as Port Blakely. This identifies an alternate pre-Navy spelling for the same Maritime Commission hull.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- Original government document is hosted as a third-party scan; only the indexed MC-433 row was retrievable, and the PDF host did not resolve for direct inspection. Use the spelling provisionally. The table says nothing about asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-port-blakeley-yt266-02
-
[3]NHHC DANFS, Pocahontas IV (YT-266) [nhhc_danfs]
- Locator
- Final history paragraph; NHHC indexed text
- Finding type
- vessel_history
- Finding
- NHHC states that Pocahontas was placed out of service and stricken, sold to Crowley Towing in 1976, renamed Sea Lark, and broken up at Sausalito on 25 February 2019.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- NHHC gives no exact out-of-service or striking date; 1976 is the sale year only. The live NHHC page returned HTTP 404. The disposal history does not establish materials aboard before dismantling.
- Atlas source
- true
- Evidence ID
- ev-uss-port-blakeley-yt266-05
-
[4]NHHC DANFS, Yaupon (ATA-218) [nhhc_danfs]
- Locator
- 5 July 1945 San Diego departure paragraph; NHHC indexed text
- Finding type
- vessel_history
- Finding
- NHHC's Yaupon history places Pocahontas (YTB-266) at San Diego on 5 July 1945 assisting Yaupon with covered lighter YF-736 before Yaupon departed for Hawaii.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- Independent operational mention only; it does not describe maintenance, materials, or asbestos exposure. The live NHHC page returned HTTP 404 during direct retrieval.
- Atlas source
- true
- Evidence ID
- ev-uss-port-blakeley-yt266-06
-
[5]Batch 9341 search ledger: NHHC DANFS, NARA public indexes, NPS, MARAD, Navy and official-source asbestos searches [other_primary]
- Locator
- search_ledger rows sl-uss-port-blakeley-yt266-01 through sl-uss-port-blakeley-yt266-08
- Finding type
- historical_record
- Finding
- No ship-specific asbestos survey, specification, abatement record, or product identification for Pocahontas/YT-266 was located in the official public sources searched (see search_ledger). Asbestos status remains unknown.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- This is a bounded negative search result, not proof that asbestos was absent. Non-digitized Navy, Maritime Commission, yard, private-owner, and demolition files may contain material evidence. It says nothing about any person's exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-port-blakeley-yt266-07
-
[6]NHHC DANFS, Pocahontas IV (YT-266) [nhhc_danfs]
- Locator
- Characteristics line and first history paragraph; NHHC indexed text
- Finding type
- vessel_history
- Finding
- Pocahontas was a Hiawatha-class, V2-ME-A1 single-screw diesel tug with a complement of 14. Laid down at Tacoma by Birchfield Boiler Inc. on 27 October 1941, launched 2 May 1942, transferred to the Navy 31 December 1942, and placed in service in the Eleventh Naval District 16 March 1943.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- NHHC's indexed text is available, but the live URL returned HTTP 404. Diesel propulsion does not prove the presence or absence of asbestos in other systems; no material or exposure finding follows from this specification.
- Atlas source
- true
- Evidence ID
- ev-uss-port-blakeley-yt266-03
-
[7]NHHC DANFS, Pocahontas IV (YT-266) [nhhc_danfs]
- Locator
- Second history paragraph; NHHC indexed text
- Finding type
- vessel_history
- Finding
- Redesignated YTB-266 on 15 May 1944, Pocahontas served the Eleventh Naval District, then the Twelfth Naval District from 1946 to 1955, principally at Mare Island Naval Shipyard, and returned to the Eleventh. Redesignated YTM-266 in February 1962, she provided towing services into 1970.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- District and yard service do not document any particular repair, asbestos material, or individual exposure. The live NHHC page returned HTTP 404 during verification.
- Atlas source
- true
- Evidence ID
- ev-uss-port-blakeley-yt266-04