Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 924-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: PHANTOM
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Evidence ID
- uss-sc-681-sc681-pkt-924-packet-md
-
[2]National Archives, Special List No. 44, by Ship Numbers (Navy logbooks 1801-1947) [other_primary]
- Locator
- PDF p. 107, SC-681 row
- Finding type
- historical_record
- Finding
- NARA's ship-number list identifies SC-681 and lists logbook coverage from 8 March 1943 through 31 July 1945. This establishes a hull-specific Navy log record for SC-681 over that listed period.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-03-08 to 1945-07-31 (logbook coverage listed)
- Population
- Navy vessel records
- Limitations
- This is a logbook inventory, not the deck logs themselves. Its dates describe listed record coverage and do not by themselves establish commissioning, service events, asbestos materials, or crew exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-681-sc681-01
-
[3]NavSource Online, Submarine Chaser Photo Archive, SC-681 (live page verified; volunteer compilation and photo archive) [other_primary]
- Locator
- Page sections SC-497 Class Submarine Chaser, specifications, photo index, and Commanding Officers
- Finding type
- vessel_history
- Finding
- NavSource's SC-681 page identifies the hull as a SC-497-class submarine chaser; reports it was laid down 24 March 1942 at Thomas Knutson Shipbuilding Corp., Halesite, Long Island, launched 30 September 1942, decommissioned 10 January 1946, struck 7 February 1946, and transferred to the Maritime Commission on 13 November 1946; credits a displayed photograph to Matthew Nichols; lists LT Calvin M. Whitesell, Jr. as commanding officer on 8 March 1943; and reports a 1 November 1966 stranding off a reef west of Dumas, Cuba.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1966 (reported history)
- Limitations
- NavSource is a volunteer secondary compilation, not an official Navy record. Its page also labels SC-681 'ex-PC-681' and says it was commissioned PC-681 before reclassification; that chronology is inconsistent with the supplied hull correction and is excluded. No asbestos information is provided. The linked image itself was not successfully retrieved.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-681-sc681-02
-
[4]NavSource Online, Submarine Chaser Photo Archive index (class-level description; live index page opened) [other_primary]
- Locator
- SC photo archive index, introductory description above the SC-497 class index
- Finding type
- historical_record
- Finding
- The NavSource index describes SC-497-class boats as wood-hulled submarine chasers. This is class-level context consistent with the wooden-hull scope supplied for SC-681; it is not a ship-specific construction record.
- Verification
- partial
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- World War II
- Population
- SC-497 class
- Limitations
- Volunteer photo-archive class summary, not an official ship construction record. It does not document asbestos or any product aboard SC-681.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-681-sc681-03
-
[5]Occupational Exposure to Asbestos, 59 Fed. Reg. 40964 (Aug. 10, 1994), shipyard discussion [federal_register]
- Locator
- Federal Register discussion, shipyard employment/asbestos use in vessels
- Finding type
- gov_survey
- Finding
- OSHA's 1994 shipyard rule summarized its view that ships delivered before 1975 contained extensive asbestos insulation materials and that maintenance and repair could create exposure opportunities. SC-681's wartime service falls within that broad historical period; this is era context only.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- Early 1940s through late 1970s (general context)
- Population
- Shipyard workers and vessels generally
- Limitations
- General OSHA context does not identify SC-681, its wooden hull, its systems, or any material aboard it. No asbestos product, installation, removal, or individual exposure is attributed to this vessel.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-681-sc681-04
-
[6]Bounded review of the cited official history, National Archives logbook inventory, OSHA shipyard material, and accessible ship-specific archive; see search ledger [other_primary]
- Locator
- Search ledger entries sl-uss-sc-681-sc681-01 through -07
- Finding type
- asbestos_application
- Finding
- No reviewed source in this research set directly documents asbestos aboard SC-681. Ship-specific asbestos documentation remains unknown.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- Research through 2026-10-03
- Limitations
- This is a bounded search result, not proof that asbestos was absent. The ship's deck logs were inventoried but not examined; the NHHC DANFS page returned 404; Firecrawl was unavailable due its keyless quota; and the CourtListener sweep was stopped at the fleet pacing limiter. No class, construction-era, hull-material, or propulsion inference is used as proof of onboard asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-681-sc681-05