Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet 914-packet.md (4 sources cited) [museum_official]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-611-pc611-pkt-914-packet-md
-
[2]NavSource Naval History, Submarine Chaser Photo Archive, PC-611 page (construction dates, builder, ship-specific specifications, disposal; live page verified 2026-10-03) [museum_official]
- Locator
- PC-611 page, specifications block and photo index
- Finding type
- vessel_history
- Finding
- NavSource record for this hull: PC-461-class submarine chaser laid down 24 February 1942 by the Brown Shipbuilding Co., Houston, TX; launched 19 June 1942; commissioned 26 October 1942; transferred to the Maritime Commission 1 July 1948 and sold for scrap to the Dulien Steel Co. of Seattle, WA. Specifications: 280 t light / 450 t full; 173 ft 8 in x 23 ft x 10 ft 10 in; 20.2 kt; complement 65; armament one 3"/50 dual-purpose mount, one single 40 mm mount, three 20 mm guns, two rocket launchers, four depth-charge projectors, two depth-charge tracks; propulsion two 2,880 bhp Hooven-Owen-Rentschler R-99DA diesel engines (serial nos. 6823 and 6824), Westinghouse single-reduction gear, two shafts. Photo record includes a c. May 1943 image at the Submarine Chaser Training Center, Miami, FL. NavSource states no DANFS history is available for PC-611.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- Brown Shipbuilding construction trades 1941-42; wartime crew (complement 65)
- Limitations
- NavSource documents construction, specifications, and disposal - not materials or asbestos content. The 19 June 1942 launch date conflicts with the shipbuilding-history table's 29 June 1942 (carried in gaps). No decommissioning or striking date is given.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-611-pc611-01
-
[3]NARA / DPLA catalog record, 'USS PC-611 - War Diary, 9/1-30/43' (NARA ID 135954991; microfilm serial 55805; CNO WWII war-diaries series, Office of Naval Records and Library) [other_primary]
- Locator
- DPLA item 48f8ef297ed0ca76e1e73b1bb0e9446d mirroring catalog.archives.gov/id/135954991
- Finding type
- historical_record
- Finding
- The National Archives catalog (mirrored via DPLA) holds a ship-specific war diary file unit for this hull covering 1-30 September 1943 - a contemporaneous operational record submitted by the ship in the CNO WWII war-diaries series. Additional monthly units from the same series are the archival path to her movements, overhauls, and any yard periods.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-09
- Population
- Wartime crew (September 1943)
- Limitations
- Catalog-level confirmation only: the file unit's existence and coverage month are verified, but the diary pages themselves were not retrieved this session (catalog is JS-rendered; microfilm serial 55805). Contents - including ports, repairs, or any material references - are unexamined. Contains no asbestos information at catalog level.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-611-pc611-02
-
[4]U.S. Naval Institute, Naval History magazine (June 2025, Vol. 39 No. 3), 'The Brown Shipbuilding Company's Rise During World War II' by Eric Pearson (archived copy - live page returns 403 to automated fetch) [reputable_press]
- Locator
- USNI Naval History June 2025 article, launch-ceremonies paragraph quoting Austin American (1942); builder-history sections
- Finding type
- vessel_history
- Finding
- USNI-sourced construction context for this hull: the Austin American (1942) reported 'Another navy submarine chaser, the USS PC-611, was launched Monday at the Brown Shipbuilding corporation plant here, with Miss Jean B. Berkendorfer, daughter of a shipfitter's helper, as sponsor.' The article documents the builder as an emergency wartime yard established 1941 by George and Herman Brown of Brown & Root on Greens Bayou off the Houston Ship Channel - no prior shipbuilding experience, sideways launches on the narrow waterway, peak employment over 25,000 workers from late 1942, output of 12 PC-461-class submarine chasers, 61 destroyer escorts (incl. USS Samuel B. Roberts, DE-413), 32 LCI(L)s and 254 LSMs.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1945
- Population
- Brown Shipbuilding workforce (peak >25,000, incl. women and minority trades under documented discrimination conditions)
- Limitations
- Reputable secondary source quoting a contemporaneous newspaper; the launch-day detail ('Monday') supports 29 June 1942 over NavSource's 19 June - the conflict is carried in gaps, not silently reconciled. Documents the builder and launch sponsor; contains no asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-611-pc611-03
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[5]U.S. Naval Institute Photo Archives, image 3427086 ('The U.S. Navy subchaser USS PC-611, January 18, 1943'); National WWII Museum digital collections, 'Patrol craft PC-611' (Official U.S. Navy Photo 120-14) [museum_official]
- Locator
- photos.usni.org/content/3427086jpg; ww2online.org/image/patrol-craft-pc-611; navsource.net PC-611 photo index (c. May 1943, SCTC Miami)
- Finding type
- historical_record
- Finding
- Primary photographic documentation of this hull: a U.S. Navy photograph of PC-611 dated 18 January 1943 (USNI Photo Archives), an undated official U.S. Navy bow-and-port-side photograph held by the National WWII Museum (catalog caption 'Patrol Craft US Navy Photo 120-14'), and a c. May 1943 photograph at the Submarine Chaser Training Center, Miami, FL (NavSource photo index, Ingersoll Rand photo via Ron Titus). Together these place the hull in Navy service by January 1943 and at the Miami training center in spring 1943.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943
- Population
- Wartime crew (pictured sailors, unidentified)
- Limitations
- Photographic records document the vessel's existence, appearance, and two dated location fixes; they contain no materials or asbestos information, and the May 1943 Miami placement is a photo-caption claim not corroborated by a service narrative.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-611-pc611-04
-
[6]uboat.net Allied Warships of WWII, USS PC-611 (PC-611) entry (ordered 20 Sep 1941; build/commission dates; commanding officers; 'sold to be broken up for scrap in late 1948') [other_primary]
- Locator
- uboat.net warship entry 8588, facts table + Commands section
- Finding type
- vessel_history
- Finding
- uboat.net record for this hull: ordered 20 September 1941; laid down 24 February 1942; launched 19 June 1942; commissioned 26 October 1942; sold to be broken up for scrap in late 1948. Wartime commanding officers listed: Harrison Hancock Holton, USN (from 26 Oct 1942); Lt. Roger Wallace Mabie, USNR (early 1943-mid/late 1943); Eugene T. Reedy, USNR (mid/late 1943-late 1944); Shelton Pitney, USNR (late 1944-mid/late 1945); Marcus M. Edminston, USNR (mid/late 1945-late 1945).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1948
- Population
- Wartime crew under five successive commanding officers
- Limitations
- Specialist secondary database consistent with NavSource on dates; the CO list is drawn from Navy records but is uncited at entry level. Confirms the hull remained in service through late 1945; contains no asbestos information and no detailed operational history.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-611-pc611-05
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[7]HyperWar/ibiblio transcription, 'Ships of the U.S. Navy, 1940-1945 - Submarine Chasers' (PC-461-class specifications: 284 t, 173 ft 8 in, diesel engines, 2 screws) + NavSource ship-specific engine identification [other_primary]
- Locator
- HyperWar 'Ships of the U.S. Navy, 1940-1945' PC-461-class specifications block; NavSource PC-611 specifications block (engine identification)
- Finding type
- asbestos_application
- Finding
- Class/era inference: PC-461-class submarine chasers (341 completed 1941-1944) were diesel-propelled patrol craft with no steam plant, so the boiler/turbine lagging pathway documented on steam warships does not apply. For a patrol craft built and commissioned in 1942 under wartime Navy construction practice, the era-typical asbestos applications were exhaust-manifold and exhaust-line lagging, compressed-asbestos gaskets and valve packing in fuel, lube-oil, bilge and firemain systems, electrical insulation, and interior fireproof/deck materials. Naval-era construction of this period routinely specified asbestos-containing thermal and fireproofing materials; per-vessel material specifications for this hull would reside in NARA RG19 records (archival lead, not retrieved). DANFS coverage exists for some sister hulls - e.g., PC-606's documented career of Miami shakedown, Caribbean convoy escort, then Pacific escort duty - but not for PC-611, which is why her own operational record cannot be narrated from official sources.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- Brown Shipbuilding construction trades 1942; crew 1942-1946; Dulien Steel scrapping workers 1948
- Limitations
- Class/era inference only - no source names this hull's materials, and asbestos presence aboard PC-611 is era-consistent inference, not ship-proven. Does not establish quantity, products, or present-day presence (hull scrapped 1948).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-611-pc611-06
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[8]Batch-7986 search ledger (this record): NHHC DANFS; NARA catalog/DPLA; Naval Vessel Register; NavSource; uboat.net; USNI Naval History; shipbuilding-history hull tables; general-web asbestos queries; CourtListener (blocked - fleet pacing budget spent) [other_primary]
- Locator
- search_ledger rows sl-uss-pc-611-pc611-01 through sl-uss-pc-611-pc611-09
- Finding type
- historical_record
- Finding
- No qualifying ship-specific record located: no asbestos survey, abatement contract, hazmat disclosure, museum record, or docketed case naming PC-611 was found in the public sources searched (see search_ledger). No DANFS history exists for this hull; the Naval Vessel Register carries no detail page because the vessel was disposed of before 1987.
- 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 construction practice is consistent with asbestos-containing materials. CourtListener base queries were attempted but the helper's fleet pacing gate was closed on five spaced attempts (exit 2); zero actual CourtListener requests were issued, so litigation coverage for this hull is incomplete rather than confirmed-negative. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-611-pc611-07