Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
-
[1]research packet 921-packet.md (2 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: MISMATCH — real identity: USS **SC-658** — a wooden-hulled submarine chaser of the SC 628–669 block. (SC-497 class not asserted: no source located that directly ties hull 658 to that class.)
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Evidence ID
- uss-sc-658-sc658-pkt-921-packet-md
-
[2]DANFS, 'SC-601 - SC-700' (NHHC multi-hull entry compilation) - SC-658 entry [nhhc_danfs]
- Locator
- SC-658 entry within the SC-601 - SC-700 DANFS compilation page
- Finding type
- vessel_history
- Finding
- Official per-hull DANFS record: 'SC-658 - Built at American Cruiser Inc., Trenton, Mich. Keel laid 12/8/41. Launched 6/6/42. Commissioned 8/21/42. Transferred to Maritime Commission 1/30/48.' Neighboring entries in the same compilation confirm the block pattern (e.g., SC-657 and SC-659 also single-line entries with builder, keel, launch, commission, disposal).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1948
- Population
- American Cruiser construction trades (1941-42); crew (1942-48)
- Limitations
- Ship-specific identity and milestones only; contains no asbestos or material content, no narrative service history, and no decommissioning or stricken date. The entry does not mention the PC-658 commissioning designation or the 1949 French sale - those details come from other rows.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-01
-
[3]NavSource Online: Submarine Chaser Photo Archive, SC-658 (ex-PC-658) - designation timeline, specifications, disposal [other_primary]
- Locator
- NavSource 12/150658.htm header, class block, timeline, and specifications
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: 'Laid down 8 December 1941 by American Cruiser, Inc., Trenton, MI; Launched 6 June 1942; Commissioned USS PC-658, 21 August 1942; Reclassified SC-658 in April 1943; Transferred to the Maritime Commission 30 January 1948; Sold to France in 1949 for duty in Indochina (Vietnam); Fate unknown.' Specifications: displacement 92 t.; length 110' 10"; beam 17'; draft 6' 6"; speed 21 kts.; complement 28; armament one 40mm mount, two .50 cal. machine guns, two depth-charge 'Y Gun' projectors, two depth-charge tracks; propulsion two 1,540 bhp General Motors (Electro-Motive Div.) 16-184A diesel engines, two shafts. Call sign Nan-William-Sugar-Yoke; header notes she 'served the Navies of the United States and France' and 'There is no DANFS history available for SC-658' (a standalone narrative entry - a one-line DANFS compilation record exists, see ev-01).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1949
- Population
- American Cruiser construction trades (1941-42); U.S. crew (1942-48); French Navy crew (1949-?)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its milestone dates track DANFS (laid down, launch, commission, Maritime Commission transfer all match) but the PC-658 commissioning designation, April 1943 reclassification, France sale, and spec block rest on this compilation alone. Contains no asbestos content. 'Fate unknown' means the French-service identity and ultimate disposition are undocumented here.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-02
-
[4]NHHC photographic record NH 85165, 'USS SC-658' - photographed circa 1945-46 [other_primary]
- Locator
- NHHC photo-catalog page for NH 85165 (NH-85000 series)
- Finding type
- historical_record
- Finding
- Official NHHC photo-catalog record naming this hull: Title 'USS SC-658'; Caption 'Photographed circa 1945-46.'; 'Courtesy of William H. Davis, 1977'; Catalog # NH 85165; original medium BW photo. Documents the hull in existence in U.S. Navy markings in the 1945-46 window - consistent with the Pacific Fleet organization listing (ev-04) and NavSource's second image for this hull, captioned 'Flying her homeward bound pennant' and credited to the Historical Collections of the Great Lakes.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-1946 (cataloged window)
- Population
- U.S. crew aboard at time of photograph (circa 1945-46)
- Limitations
- A cataloged photograph establishes existence and appearance only - not location, operations, or material condition. Contains no asbestos content. 'Circa 1945-46' is the cataloger's estimate; exact date and location are not stated.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-03
-
[5]NHHC Online Reading Room, 'United States Pacific Fleet Organization, 1 May 1945' (primary-source fleet roster) [other_primary]
- Locator
- Service Squadron Two roster, Service Force, Pacific Fleet section - 'SC 658 (1) ..........' row (p. ~102 of the document)
- Finding type
- vessel_history
- Finding
- The official U.S. Pacific Fleet organization roster of 1 May 1945 lists 'SC 658' under Service Squadron Two, Service Force, Pacific Fleet, in the service/patrol-craft block alongside other SC, PC, PCS, PCE, and yard craft. The row carries the marker '(1)' and the command column shows '..........' (no commanding officer listed). Documents administrative assignment of this hull to the Pacific Fleet's service organization as of 1 May 1945.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-05-01
- Population
- U.S. crew aboard at roster date
- Limitations
- Administrative assignment only - the roster does not state where the vessel was physically located or what operations it performed. The '(1)' footnote marker is undefined in the digitized text (footnote legend not captured in the online presentation); the blank command field ('..........') is consistent with a newly reporting or vacant command billet but this is not stated. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-04
-
[6]NARA catalog record NAID 192208248, 'SC-658, 8/31/42-8/1/46' - RG 24 (Records of the Bureau of Naval Personnel), series 'Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities' (1939-1949) [other_primary]
- Locator
- catalog.archives.gov/id/192208248 (RG 24, Muster Rolls series 594996; microfilm Roll 6780; NARA College Park); images 00004, 00007, 00350 read
- Finding type
- historical_record
- Finding
- The ship's muster rolls are digitized and publicly accessible: NAID 192208248 covers SC-658 from 8/31/42 through 8/1/46 in 354 scanned images (Ancestry-NARA partnership scan of microfilm Roll 6780), access and use unrestricted. Verified at page level: the first roll's forwarding sheet (31 August 1942) styles the vessel 'U.S.S. SC 658,' is forwarded 'From Postmaster, New York, N.Y.,' and is signed by her first commanding officer, Lt. F. C. Cady, USNR, and executive officer Ens. K. H. Roberts, USNR; the August 1942 'Report of Changes of U.S.S. SC 658' documents crew received aboard from Receiving Station, New York, N.Y., at commissioning (entries dated 8-21-42 and 8-27-42). The final roll page (period ending 8/1/46, stamped received September 1946, annotated 'Final') lists the last crew transferred to Receiving Station, Treasure Island, California, for further transfer to Personnel Separation Centers - the WWII demobilization pathway - and is signed by her last commanding officer, Lt.(jg) P. F. Sweeney, USNR. The rolls name every individual carried on the ship's books across essentially her entire U.S. Navy career - the definitive crew-population record for this hull.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1946
- Population
- All U.S. personnel carried on SC-658 rolls, 8/31/42-8/1/46; first CO Lt. F. C. Cady, USNR; last CO Lt.(jg) P. F. Sweeney, USNR
- Limitations
- Verified at catalog level and by reading selected roll pages (first-quarter forwarding sheet, August 1942 Report of Changes, and the final roll page); the full 354-page roll was not read, so the complete personnel list was not extracted. Muster rolls document personnel, not material - they contain no asbestos information. Notably, the rolls style the vessel 'SC 658' from August 1942, months before the April 1943 formal reclassification date NavSource reports - see ev-06. The final roll documents crew demobilization at Treasure Island in mid-1946, consistent with deactivation, but no decommissioning date is stated in the roll itself.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-05
-
[7]Designation cross-check: NavSource SC-658 header 'ex-PC-658' and timeline ('Commissioned USS PC-658, 21 August 1942; Reclassified SC-658 in April 1943'); NARA muster rolls NAID 192208248 (roll cover and August 1942 Report of Changes style her 'U.S.S. SC 658' months before the reported April 1943 reclassification); NavSource 110' SC index shows the same ex-PC pattern on block-mates (e.g., SC-639, SC-642, SC-643, SC-667); DANFS per-hull entries confirm the SC-628-669 block was built as SC-class submarine chasers [other_primary]
- Locator
- NavSource 12/150658.htm header ('ex-PC-658') and timeline; NARA NAID 192208248 images 00002 (forwarding sheet, 30 Sep 1942) and 00007 (Report of Changes, Aug 1942); NavSource 12/15idx.htm index entries; DANFS SC-601 - SC-700 compilation
- Finding type
- historical_record
- Finding
- DESIGNATION CLARIFICATION: this hull was commissioned as USS PC-658 on 21 August 1942 and reclassified SC-658 in April 1943 - but it was never a PC-461-class patrol craft. The PC-461 class numbering skips the 628-669 block, which was reserved for SC-type hulls ordered under PC numbers; the vessel was a wooden SC-497-class submarine chaser throughout. Any record or query treating 'PC-658' as a PC-461-class vessel is an identity error: the designation maps to this SC hull only. The ship's own paperwork already used the SC form: her muster-roll forwarding sheets (August and September 1942) and August 1942 Report of Changes are styled 'U.S.S. SC 658,' months before the formal reclassification date NavSource reports.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1943 (designation window)
- Limitations
- Corrects a designation ambiguity, not a material claim. The PC-658 commissioning designation and April 1943 reclassification date rest on NavSource (the DANFS entry does not mention them); the Bureau of Navigation muster-roll usage of 'SC 658' in August-September 1942 is primary evidence that the SC styling predated the formal reclassification in shipboard paperwork. The block-level 'ordered as PC, built as SC' explanation is consistent with the ex-PC markings NavSource shows on multiple hulls in this block but the underlying reclassification directive was not examined.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-06
-
[8]uboat.net Allied Warships database, USS SC-658 (SC-658) - order date, builder, milestones [other_primary]
- Locator
- uboat.net/allies/warships/ship/8875.html data table
- Finding type
- vessel_history
- Finding
- uboat.net Allied Warships entry for this hull: class SC-497; pennant SC-658; 'Built by American Cruiser Inc. (Trenton, Michigan, U.S.A.)'; Ordered 18 Sep 1941; Laid down 8 Dec 1941; Launched 6 Jun 1942; Commissioned 21 Aug 1942. All milestones match DANFS and NavSource; the 'ordered' date of 18 September 1941 is the only source-located order/contract date for this hull.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1942
- Population
- American Cruiser construction trades (1941-42)
- Limitations
- uboat.net's Allied Warships section is a respected volunteer-compiled secondary database, not a primary registry - consistent with DANFS on every shared datum, but the 'Ordered 18 Sep 1941' date is uncorroborated by a primary source in this research. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-07
-
[9]Era inference built on: NavSource specifications block for this hull (wooden SC-497 class; two GM/EMD 16-184A diesel engines, two shafts; no steam plant); DANFS build record (1941-42 wooden patrol-craft construction); GAO HRD-80-2 Navy-wide asbestos-era context (see ev-08) [other_primary]
- Locator
- NavSource 12/150658.htm specifications; DANFS SC-601 - SC-700 compilation; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- A wooden-hulled, diesel-powered submarine chaser built 1941-42 sits inside the Navy's documented asbestos-use era. Era-consistent applications aboard a small diesel patrol craft of this type were diesel-engine and exhaust-system insulation/lagging, gaskets and flange packing on the engine plant, machinery-space thermal/acoustic insulation, electrical insulation, and friction materials such as winch brake linings. As a wooden diesel craft she carried no boilers, steam lines, or turbines - the heavy lagging pathways of steam combatants do not apply, and her asbestos load would have been materially smaller than a steam vessel's.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1949
- Population
- American Cruiser construction trades (1941-42); crew (1942-48); any French Navy crew (1949-?)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or builder specification located for SC-658. Names era-standard applications, not confirmed installed materials. No quantity. No manufacturer attribution for this hull. The inference is weaker here than for steam vessels precisely because the diesel/wood construction narrows the plausible application set.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-08
-
[10]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (highlights text)
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the 1970s - spanning this hull's entire construction (1941-42) and U.S. service era (1942-48). The report's fieldwork covered the Long Beach and Norfolk Naval Shipyards' asbestos practices and the Navy's damaged-insulation removal policies.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Fieldwork yards (Long Beach, Norfolk) are not where this hull was built. Content via GAO product-page highlights (full PDF linked; not extracted this session).
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-09
-
[11]Batch-8032 search ledger (this record): DANFS compilation; NHHC photo catalog; NHHC Pacific Fleet organization roster; NavSource; uboat.net; NARA catalog (muster rolls hit); NVR; MARAD vessel-history database; WW2PCSA; secondary web sweep; CourtListener [other_primary]
- Locator
- search_ledger rows sl-uss-sc-658-sc658-01 through -14
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or qualifying litigation naming SC-658/PC-658 was found in the public sources searched (see search_ledger). The secondary web sweep and the full CourtListener sweep (four base queries plus four asbestos-qualified variants) surfaced only name collisions - 'S.C. 658' (South Carolina Reports page cites, e.g., 336 S.C. 658) inside asbestos-litigation documents, state supreme-court docket prefixes, Pa.C.S. statute cites, 'P.C.' party names, and docket-number fragments - none referencing this vessel.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - era inference remains, and the digitized muster rolls plus any undigitized deck logs and MARAD status cards are open leads. Does not establish or defeat any claim of exposure or legal eligibility. CourtListener caveat: all four designations are extreme high-collision search terms; page-1 review was complete for all eight queries run, but the unreviewed result tails (thousands of collision hits per query) cannot be exhaustively classified - see sl-13/sl-14.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-658-sc658-10