Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 916-packet.md (14 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED (with class clarification)
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-628-pc628-pkt-916-packet-md
-
[2]NavSource Online: Submarine Chaser Photo Archive, SCC-628 ex-SC-628 ex-PC-628 - full designation timeline, specifications, commanding officers, commercial disposition, 1958 sinking [other_primary]
- Locator
- NavSource 12/150628.htm header block, class specification block, commanding-officers table, disposition lines
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 25 August 1941 by Quincy Adams Yacht Yard, Quincy, MA; launched 15 April 1942; commissioned USS PC-628, 29 April 1942; reclassified SC-628 in April 1943; reclassified as a Control Submarine Chaser, SCC-628, 20 August 1945; struck from the Naval Register 20 March 1946; transferred to the Maritime Commission 6 May 1947; acquired 1957 by Sea Service Co., Inc. of Houston, TX and named S.S.C. III; acquired 1957 by Carl M. Zoll of Metairie, LA for use as a fishing boat and renamed Indian Prince; sunk 22 January 1958 in collision with the Netherlands vessel Bonita at Mile 20.5 on the Mississippi River. Spec block: 148 t., 110'10" x 17' x 6'6", 15.6 kts., complement 28, one 40mm mount + two .50 cal. + two Y-guns + two depth-charge tracks, two 880bhp GM 8-268A diesels, two shafts. COs listed: LTJG Lawrence G. Fitzsimmons Jr. USNR (29 Apr 1942); LTJG T. E. Bowe Jr. USNR (1945). Page states: 'There is no DANFS history available for SC-628.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1958
- Population
- Quincy Adams construction trades (1941-42); crew (1942-46); commercial crews (1947-58)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track official records and are corroborated here by the FY1941 building-program data (ev-02) and secondary listings, but each date ultimately rests on NavSource's transcription. Contains no asbestos content. The 1958 sinking details (Bonita collision, Mile 20.5) rest on this source alone so far - USCG casualty and any admiralty records unverified (see gaps).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-01
-
[3]ShipScribe, U.S. Navy Building Programs During World War II: FY 1939-41 - FY1941 program, '400 Small Craft: 5th Group' table; corroborated by shipbuildinghistory.com Quincy Adams Yacht Yard vessel table (live 2026-10-03) [other_primary]
- Locator
- fy3941.html, FISCAL YEAR 1941 > '400 Small Craft: 5th Group' table, rows '48 SC 628-29 Quincy Adams' and adjacent '50 PC 578-627' block; shipbuildinghistory.com/shipyards/yachtsmall/adams.htm yard history + SC 628 row
- Finding type
- historical_record
- Finding
- FY1941 building-program table lists '48 SC | 628-29 | (110') | 20 | 30 Jul 41 | Quincy Adams' - hulls SC 628-629, 110-foot submarine chasers, awarded 30 July 1941 to Quincy Adams Yacht Yard within the '400 Small Craft: 5th Group' program block. The same table lists the 50-steel-PC block (PC 578-627, 173-footers, awarded 20 Sep 41) immediately above the 48-SC block (SC 628-675+, 110-footers, awarded 30 Jul 41) - documenting that hull 628 was ordered in the wooden 110' SC group even though she commissioned under the PC designation. The builder's own vessel table (shipbuildinghistory.com, Colton) independently corroborates: 'SC 628 | US Navy | Sub Chaser | 136 GT | 110 | 29-Apr-42 | Later SCC 628, to the NDRF 1947' - matching NavSource's commission/stricken/disposal dates - and lists Quincy Adams' full wartime SC output (SC 513-514, 628-629, 744-750, 1266-1275, 1474-1479+). Yard identity: former F. D. Lawley yard (est. 1906), renamed Quincy Adams Yacht Yard under Harold Noyes, 47 Palmer Street, Germantown section of Quincy; site now condominiums.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1947
- Population
- Quincy Adams construction trades (1941-42)
- Limitations
- ShipScribe and shipbuildinghistory.com are secondary compendia of official building-program and yard data, not the underlying BuShips directive or contract; corroborate NavSource/uboat.net ordered-30-Jul-1941, Quincy Adams builder, and the 1947 NDRF (Maritime Commission) transfer. Explains the designation anomaly (SC-program hull carrying a PC number at commissioning) but does not itself document the commissioning designation or the April 1943 reclassification.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-02
-
[4]NavSource Online: Submarine Chaser Photo Archive, SC-497 ex-PC-497 - class lead ship's identical designation sequence [other_primary]
- Locator
- NavSource 12/150497.htm header block; NavSource 12/15idx.htm index lines 'SC/SCC-628 ex-PC-628'; en.wikipedia.org/wiki/SC-497-class_submarine_chaser; ibiblio.org/hyperwar/USN/ships/ships-sc.html
- Finding type
- historical_record
- Finding
- Class-level pattern corroborating this hull's PC-628 -> SC-628 designation sequence: the class lead ship herself was 'Commissioned USS PC-497, 15 April 1942' and 'Reclassified SC-497 in April 1943' (NavSource). Early 110-foot SC-497-class subchasers commissioned under PC numbers and were reclassified to SC numbers in April 1943; the NavSource submarine-chaser index likewise lists the 628+ block as 'SC/SCC-628 ex-PC-628' through the series. Class data (Wikipedia class article, HyperWar 'Ships of the U.S. Navy 1940-1945' SC table): SC-497 class = 110'10" wooden-hulled submarine chasers - the 'splinter fleet' - diesel powered (GM 8-268A or 16-184A), 438 completed 1941-44.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1945
- Limitations
- Establishes the class-wide designation pattern and class characteristics only - does not itself document this hull's reclassification date (NavSource's SC-628 page does). Wooden-hull/diesel characteristics are construction facts, not asbestos findings; they bound - they do not determine - what insulation was installed aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-03
-
[5]WWII campaign battle-star listing for SC-497 through SC-691, derived from Navy and Marine Corps Awards Manual NAVPERS 15,790 (Rev. 1953) (commercial transcription) [other_primary]
- Locator
- officialmilitaryribbons.com SC-497-to-SC-691 battle-star table, 'SC 628' row
- Finding type
- vessel_history
- Finding
- SC-628 is credited in the NAVPERS 15,790-derived listing with one Asiatic-Pacific campaign star: '8 May 45 - 30 Jun 45 | P34-1 | Assault and occupation of Okinawa Gunto.' This places the hull in the Okinawa operating area in May-June 1945 - consistent with her 20 August 1945 reclassification as SCC-628 (control submarine chasers were fitted to direct landing craft in amphibious operations), with NARA catalog war-diary matches along a San Diego-Palmyra-Espiritu Santo Pacific trajectory (ev-06), and with sister SC-632's loss off Okinawa (16 Sep 1945, uboat.net class listing).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945
- Population
- crew embarked during Okinawa operations (May-Jun 1945)
- Limitations
- Secondary commercial transcription of an official source (NAVPERS 15,790 Rev. 1953) - the underlying manual page was not independently sighted this session; verification partial. Campaign presence is a vessel-history fact, not an exposure record. The 30 Jun 1945 star period predates the formal 20 Aug 1945 SCC designation, indicating control-configuration preceded formal redesignation.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-04
-
[6]NARA, Record Group 24 (Bureau of Naval Personnel), Series: Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities - File Unit 'SC-628, 1/1/42-2/25/46', NAID 192704639 [other_primary]
- Locator
- catalog.archives.gov/id/192704639 - RG 24 muster-rolls file unit title and image count
- Finding type
- historical_record
- Finding
- NARA holds digitized muster rolls for this hull: File Unit 'SC-628, 1/1/42-2/25/46', 212 images (Ancestry partnership scan), covering the full commissioned period under all three designations (PC-628, SC-628, SCC-628) from commissioning-era through just before striking. Muster rolls enumerate crew by name and rating at reporting periods - a ship-specific personnel record suitable for crew verification and any future exposure-claim research.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1946
- Population
- all hands reported aboard, 1942-1946 (enumerated by name/rating in source)
- Limitations
- Archival lead: the file unit was verified live in the NARA catalog (NAID 192704639); individual images were not reviewed this session, so contents are known only at file-unit level. WWII-era deck logs for this hull were NOT found digitized (the 15 catalog 'deck log' hits for 'SC-628' are OCR mentions inside other ships' post-1955 logs); SL-44 logbook coverage 'SC-628 7/1/1942-6/30/1945' per batch intake was not independently verified this session - muster-roll coverage (1/1/42-2/25/46) is the verified record. Crew rolls are not exposure or material records.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-05
-
[7]NARA catalog full-text search for 'SC-628' - OCR-level matches inside WWII war diaries of Pacific-area commands [other_primary]
- Locator
- catalog.archives.gov search 'SC-628' (363 hits); matching file units incl. NAIDs 133994044, 133954649, 134031745, 134063967, 134065797, 134133270, 78418556, 78396486, 78432199, 78410841
- Finding type
- historical_record
- Finding
- NARA catalog full-text search returns 'SC-628' matches inside digitized WWII war diaries, indicating the hull appears in operational reporting of: DES BASE San Diego (war diaries Jul-Aug 1942, Sep-Oct 1942, Dec 1942, Jan 1943), COM 11 / NOB San Diego & 11th Naval District (Jan 1943), NAS Palmyra (Mar 1943), NAV ADV BASE Espiritu Santo (Feb 1944, Mar 1944, Apr 1944), and USS Dixie AD-14 (Mar 1944). Read together these are consistent with a San Diego -> Palmyra -> Espiritu Santo Pacific service trajectory culminating in the documented Okinawa campaign credit (ev-04).
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1944
- Population
- crew (1942-44)
- Limitations
- OCR-level catalog matches only - the specific pages/entries were not sighted this session, and 'SC-628' in a base war diary could in principle be a document/serial reference rather than the vessel. Treated strictly as archival leads for service location; no operational detail asserted. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-06
-
[8]Era inference built on: NavSource spec block (wooden 110' SC-497 class, GM 8-268A diesel plant); SC-497-class construction data ('splinter fleet' wooden hulls, built to conserve strategic material); GAO HRD-80-2 Navy-wide asbestos-era documentation (ev-08) [other_primary]
- Locator
- NavSource 12/150628.htm spec block; SC-497 class references (ev-03); shipyard-era inference per ev-08
- Finding type
- asbestos_application
- Finding
- A 1941-42 wooden-hulled diesel submarine chaser sits inside the Navy's documented asbestos-use era, but with a materially smaller footprint than steel steam vessels: no boilers, turbines, or steam piping aboard. Era-standard applications aboard a small diesel craft of this type and period were engine and exhaust lagging in the machinery space, gaskets, valve packing, and electrical insulation. The wooden hull ('splinter fleet') eliminated the structural insulation scope of steel construction; any asbestos aboard was concentrated in machinery spaces around the two GM diesels and auxiliary equipment.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1958
- Population
- Quincy Adams construction trades (1941-42); crew machinery-space personnel (1942-46); any conversion-yard trades (1947+ commercial rebuild); scrapping/salvage unknown
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work order, or work package located for PC-628/SC-628/SCC-628. Names era-standard applications, not confirmed installed materials. No quantity. The smaller-inference framing (wooden hull, diesel plant) is a construction fact, not proof of low or absent asbestos; individual exposure aboard is undocumented.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-07
-
[9]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- 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 early 1970s - spanning this hull's entire construction (1941-42) and U.S. service era (1942-46).
- 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. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403, confirmed 2026-10-03) - content via product-page description. The report's framing centers on steam plants and large-yard exposure; its relevance to a small wooden diesel craft is era-level only.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-08
-
[10]Designation/classification cross-check: NavSource designation history (PC-628 -> SC-628 -> SCC-628); NavSource SC index ('SC/SCC-628 ex-PC-628'); ShipScribe FY41 program table (SC-group 110' award); uswarships.jounin.jp PC and SC listings (same sequence); uboat.net (SC-497 class throughout); navalmarinearchive table ('SC 628 ... To MARAD 1947') [other_primary]
- Locator
- NavSource 12/150628.htm + 12/15idx.htm; shipscribe fy3941 '400 Small Craft: 5th Group'; uboat.net ship/8845; navalmarinearchive.com/sbh/smallships/pc2.html
- Finding type
- historical_record
- Finding
- CORRECTION: this hull is correctly a 110-foot wooden SC-497-class submarine chaser, not a PC-461-class 173-foot steel patrol craft - the 'PC-628' in her designation history was the Navy's own commissioning designation for this SC-program hull (reclassified SC-628 April 1943, the same April-1943 PC->SC correction applied class-wide, e.g., PC-497 -> SC-497). Sources that file her as a 'PC' without the SC context misstate her class; sources listing PC-461-class characteristics (173' steel hull, ~284 t) do not describe this vessel.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1946 (designation window)
- Limitations
- Corrects a classification misattribution, not a material claim. All milestone data here rests on NavSource + secondary compilations; no primary registry page (NVR entry does not exist - disposed 1947, long before NVR coverage; no DANFS entry - NavSource states none exists).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-09
-
[11]Batch-8003 search ledger (this record): NavSource (live); ShipScribe FY41 program; NARA catalog (muster rolls verified, war-diary OCR leads); uboat.net; officialmilitaryribbons (NAVPERS 15,790-derived); NARA digitized deck-log index; hazegray DANFS patrol index; secondary web sweeps; CourtListener via fleet helper (status per ledger) [other_primary]
- Locator
- search_ledger rows sl-uss-pc-628-pc628-01 through -12
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or litigation naming USS PC-628 / SC-628 / SCC-628 was found in the sources searched. CourtListener opinion search on 'PC-628' returned 2,496 hits, all name collisions on inspected pages (docket-number fragments such as '49S02-9711-PC-628', penal-code citations, unrelated index numbers) - no vessel match; remaining base queries and status are in search_ledger. Secondary web sweeps surfaced no qualifying asbestos content; the only 'asbestos aboard' material found anywhere for this hull class is law-firm/marketing listicle content asserting asbestos without primary sourcing - excluded by source policy.
- 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. Muster rolls, war diaries, and any BuShips work packages/SC conversion records are extant archival leads. A 1958 sinking under commercial ownership could have generated admiralty litigation under her commercial names (Indian Prince, S.S.C. III) rather than her hull numbers - that lead is outside this session's query set (see gaps). Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-628-pc628-10