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, 'Abinago (YTB-493)' [nhhc_danfs]
- Locator
- Indexed DANFS entry, specifications and opening paragraph; direct page returned HTTP 404 during review
- Finding type
- vessel_history
- Finding
- NHHC identifies Abinago as a Pessacus-class harbor tug, laid down at Ira S. Bushey & Sons in Brooklyn on 25 September 1944, launched on 22 December 1944, and delivered to the Navy on 14 June 1945. Its listed complement is 10.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1944-1945
- Population
- Listed complement: 10
- Limitations
- The official entry was available as search-indexed text, but its live page returned 404. Delivery is dated; the entry does not give a separate exact date for placement in service. These identity and specification facts establish no asbestos material, exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-abinago-ytb493-01
-
[2]NHHC DANFS, 'Abinago (YTB-493)' [nhhc_danfs]
- Locator
- Indexed DANFS entry, closing sentences; direct page returned HTTP 404 during review
- Finding type
- vessel_history
- Finding
- DANFS records removal of Abinago's name from the Naval Vessel Register on 1 May 1975 and transfer to the University of Georgia Institute of Natural Resources on 21 November 1975 following GSA disposal action.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1975
- Limitations
- The official indexed text provides the transfer but no subsequent operating history, current location, scrapping, or material survey. The live page returned 404. No asbestos fact follows from disposal or transfer.
- Atlas source
- true
- Evidence ID
- ev-uss-abinago-ytb493-03
-
[3]National Archives, Ship Plan Index, ABINAGO rows for YTB-493 and YTM-493 [other_primary]
- Locator
- ABINAGO table rows; NARA catalog IDs 153716511 and 153716522
- Finding type
- historical_record
- Finding
- NARA's Ship Plan Index lists ABINAGO under YTB-493 (catalog ID 153716511) and YTM-493 (catalog ID 153716522), both in Record Group 19's Hull series of Ship Engineering Drawings. This establishes the later YTM-493 identifier against DANFS's apparent 'YTM-93' transcription error.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1945-1975
- Limitations
- The index proves the cataloged identifiers and existence of drawing descriptions, not the drawing contents or exact date of redesignation. The drawings were not retrieved; no insulation or asbestos content can be inferred from the index.
- Atlas source
- true
- Evidence ID
- ev-uss-abinago-ytb493-04
-
[4]National Archives, Ship Plan Index; 'Researching Asbestos aboard US Naval Vessel up through 1961' [other_primary]
- Locator
- ABINAGO YTB-493 / YTM-493 entries, IDs 153716511 / 153716522; asbestos guide, Cartographic Branch section, https://www.archives.gov/research/military/navy/guided-topics/asbestos
- Finding type
- historical_record
- Finding
- The two NARA RG 19 drawing entries for Abinago are hull-specific archival leads. NARA's asbestos research guide identifies ship engineering drawings, especially material group S39 for insulation and lagging and S48 for piping, as potentially responsive records.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1945-1975 records
- Limitations
- Index entries do not identify which drawing sheets exist for Abinago, whether S39 or S48 is present, or whether any sheet names asbestos. No drawings were inspected; catalog access was unavailable during this review. This is a research lead only.
- Atlas source
- true
- Evidence ID
- ev-uss-abinago-ytb493-05
-
[5]National Archives, 'Researching Asbestos aboard US Naval Vessel up through 1961' [other_primary]
- Locator
- Beginning Research; Bureau of Ships correspondence; Cartographic Branch sections
- Finding type
- historical_record
- Finding
- NARA treats asbestos in U.S. Navy materiel from 1941 to 1961 as a subject requiring ship-by-ship archival research and recommends ship and class correspondence, yard records, specifications, and engineering drawings. Abinago's 1944-45 construction falls within that research period.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-24
- Study period
- 1941-1961
- Population
- U.S. Navy personnel and shipyard workers, era context only
- Limitations
- This is era-level research guidance only. It does not identify any Abinago component, asbestos product, shipboard location, quantity, condition, exposure, or injury; the vessel's build date cannot turn general Navy history into a hull-specific finding.
- Atlas source
- true
- Evidence ID
- ev-uss-abinago-ytb493-06
-
[6]Batch 9417 search ledger for Abinago: NHHC, NARA, NAVSEA, and authenticated CourtListener API v4 searches [other_primary]
- Locator
- search_ledger rows sl-uss-abinago-ytb493-01 through sl-uss-abinago-ytb493-10
- Finding type
- historical_record
- Finding
- No qualifying Abinago-specific asbestos survey, abatement record, materials document, or asbestos litigation hit was located in the public NHHC and NARA sources and authenticated CourtListener searches recorded in this vessel's search ledger.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- Searches performed 2026-09-24
- Limitations
- A negative public-source search is not proof that asbestos was absent aboard, that no person was exposed, or that no claim exists outside indexed CourtListener opinions and RECAP dockets. The NARA drawings were identified but not inspected; later University of Georgia records were not located.
- Atlas source
- true
- Evidence ID
- ev-uss-abinago-ytb493-07
-
[7]NHHC DANFS, 'Abinago (YTB-493)' [nhhc_danfs]
- Locator
- Indexed DANFS entry, service-history paragraph; direct page returned HTTP 404 during review
- Finding type
- vessel_history
- Finding
- DANFS says Abinago was placed in service with the First Fleet; served on the west coast until placement in reserve at San Diego in May 1947; was apparently still in reserve in Panama by January 1949; returned to service in October 1950 for Fifth Naval District duty based at Norfolk; moved to an Atlantic advanced-base assignment late in 1958; was in the Atlantic Inactive Fleet from March 1967 to February 1968; and was active again afterward, with inactivation being prepared in 1973.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1945-1973
- Population
- Navy harbor-tug crew
- Limitations
- DANFS itself says extant records reveal no specific facts about duties during the Atlantic advanced-base assignment. Reserve and active-status dates describe service, not any onboard material or exposure. Live page returned 404; account checked against official indexed text.
- Atlas source
- true
- Evidence ID
- ev-uss-abinago-ytb493-02