Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 896-packet.md (3 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-rolla-pc483-pkt-896-packet-md
-
[2]DANFS, 'Rolla', Vol. VI (R through Z), p. 152 - construction, namesake, service narrative, spec block; print-volume text verified via archive.org full text; transcription mirror at losthistory.net/hazegray/danfs/patrol/pc483.htm (live NHHC DANFS URL not located - 404 on all candidates) [nhhc_danfs]
- Locator
- DANFS Vol. VI, p. 152, 'Rolla' entry (spec block + service narrative)
- Finding type
- vessel_history
- Finding
- Documented for this hull: 'A city in Missouri.' Laid down as PC-483 on 31 December 1940 by the Consolidated Ship Builders Corp.; launched 25 October 1941; sponsored by Mrs. J. M. Irish, wife of Rear Adm. J. M. Irish; delivered to the Navy 9 March 1942; commissioned 12 March 1942, Lt. I. H. Cammern, USNR, in command. Fitted out at Brooklyn; sailed south to Miami where, after shakedown, she remained as a schoolship for the Submarine Training Center. Ordered to the west coast at the end of 1942; sailed from Florida 11 January 1943 and reported for training ship duties at Treasure Island 3 February; nine months there performing minor patrol and escort duties in addition to her primary assignment; sailed west 3 November 1943 and reported ten days later to Commander, Hawaiian Sea Frontier for escort and patrol work - so employed in the Hawaiian Islands through the end of 1945. Underway for return to the east coast 22 January 1946; prepared for inactive duty at Key West, Fla., 1 March - 3 April; joined the 16th (Inactive) Fleet at Green Cove Springs, Fla., 6 April. 'Decommissioned 18 June, she was placed in service, in reserve and was totally inactivated in December 1947. PC-483, renamed Rolla 15 February 1956, remained in the Reserve Fleet, berthed in Florida, until struck from the Navy list on 1 July 1960.' Spec block: dp. 295; l. 173'8"; b. 23'; dr. 10'10"; s. 20 k.; cpl. 58; a. 2 3", 2 dct., 2 dcp.; cl. PC-461. CORRECTION NOTE: the circulating losthistory.net/hazegray transcription misprints '15 June' and 'PC-488' in the decommissioning/renaming sentence; the original print volume reads 'Decommissioned 18 June' and 'PC-483, renamed Rolla' - verified against the archive.org scan of the printed volume.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1940-1960
- Population
- Consolidated construction trades (1940-42); wartime crew (complement 58 per DANFS spec block); reserve-fleet caretakers (1946-60)
- Limitations
- Ship-specific history only; DANFS documents service and milestones, not materials or asbestos content. The DANFS narrative ends at the 1 July 1960 striking and does not cover the Venezuelan transfer. Live NHHC DANFS page not located (all candidate URLs 404 on 2026-10-03) - standing NHHC link-rot/absent-entry defect; verbatim text carried from the archive.org scan of the printed Vol. VI (same text mirrored at losthistory.net/hazegray with the two transcription typos noted). Spec-block figures (cpl. 58; two 3" guns) conflict with NavSource/PCSA - carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-01
-
[3]NavSource Online: Submarine Chaser Photo Archive, Rolla (PC 483) ex-PC-483 - designation timeline, specifications, commanding officers, NARA-captioned photography, Venezuelan disposal [other_primary]
- Locator
- NavSource 12/010483.htm header block, specifications block, photo captions, CO list
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull concurs with the DANFS print text on every milestone: laid down 31 December 1940 by Consolidated Ship Builders Corp., Morris Heights, NY; launched 25 October 1941; commissioned USS PC-483 12 March 1942; joined the Atlantic Reserve Fleet 6 April 1946 at Green Cove Springs, FL; decommissioned 18 June 1946 (Naval Vessel Register of 1 January 1949 lists plan for decommissioning and placing in reserve as January 1947); named Rolla 15 February 1956; struck from the Navy Register 1 July 1960; transferred to Venezuela in October 1960 and renamed Camaron (P 08); placed in reserve 1968; struck from the Venezuelan Navy Register in 1978; fate unknown. Call sign November-Bravo-Papa-Delta. Specs: 280 t. (lt), 450 t. (fl); 173'8" x 23' x 10'10"; 20.2 kts; cpl. 65; one 3"/50 DP mount, one 40mm, three 20mm, two rocket launchers, four depth-charge projectors, two depth-charge tracks; two 1,440-bhp Fairbanks-Morse 38D8-1/8 diesels (serial nos. 832095, 832096), Westinghouse single-reduction gear, two shafts. Commanding officers listed: LT Irven Hamblin Cammarn, USNR (12 March 1942); LCDR Dewey Walley, USN (1946); LT John Thomas Grimes, USN (1947); LTJG Frank S. King, USNR. Photography credited to NARA: 80-G-14659 and c.1942 color photo 80-G-K-428, plus a named crew photo.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1940-1978
- Population
- Consolidated construction trades (1940-42); crew incl. Miami schoolship and Treasure Island periods (1942-46); reserve-fleet caretakers (1946-60)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its milestones here concur with the DANFS print volume. Displacement (280/450 t) and main-battery count (one 3"/50) conflict with the DANFS spec block (295 t; two 3") - carried in gaps. Contains no asbestos content. The October 1960 Venezuelan transfer date conflicts with Navypedia's 15 October 1963 Venezuelan commissioning - carried in gaps; post-1978 fate undocumented.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-02
-
[4]NARA file unit 'PC-483, 3/12/42-6/18/47', NAID 192386476 (Container ID: Roll 5750) - Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities, RG 24 (Records of the Bureau of Naval Personnel, series NAID 594996); 315 page-images digitized via Ancestry-NARA collaboration; unrestricted [other_primary]
- Locator
- catalog.archives.gov/id/192386476 (file-unit page; RG 24, series NAID 594996, roll 5750; first image 32862_252402-00000.jpg, last -00314.jpg)
- Finding type
- historical_record
- Finding
- Digitized ship-specific personnel record: PC-483's muster rolls span 12 March 1942 (commissioning) through 18 June 1947 on microfilm roll 5750 (315 page-images, unrestricted, NARA College Park). The coverage extends one year past her 18 June 1946 decommissioning - consistent with DANFS's 'placed in service, in reserve' status through her December 1947 total inactivation, during which a caretaker detachment would still render muster rolls. The rolls document by name the crew population aboard this hull across the full exposure era - the population frame for any future exposure-window or service-verification claim.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1947
- Population
- PC-483 ship's company and reserve caretaker detachment, 1942-1947 (roster documentation)
- Limitations
- Archival lead: muster rolls document crew rosters, not materials or conditions aboard. No asbestos content; does not establish exposure, ACM presence, or any individual's duties. Images are digitized but untranscribed (none reviewed this session).
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-03
-
[5]NARA items 'Submarine Chasers and Crew', NAID 315835462 (80-GK-428) and NAID 315835460 (80-GK-427) - RG 80 General Records of the Department of the Navy, 'Color Photographs of U.S. Navy Activities' series (Naval Photographic Center); Still Pictures unit, College Park [other_primary]
- Locator
- catalog.archives.gov/id/315835462 and /id/315835460 (item pages; scopeAndContentNote original captions)
- Finding type
- historical_record
- Finding
- Two NARA-cataloged Kodachrome photographs name this hull in their original captions: 'Submarine chasers and crew. (PC-483, 461, 466)' - images 80-GK-427 and 80-GK-428, wartime color photography showing PC-483 alongside class sisters PC-461 and PC-466. The same 80-GK-428 image is displayed on the NavSource page credited to NARA (c. 1942). Negatives held at NARA College Park Still Pictures.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- circa 1942
- Population
- PC-483 and sister-hull crews, c. 1942 (photo subjects)
- Limitations
- Archival lead only: photographs document the vessel and crew, not materials or conditions aboard. NARA catalog metadata gives no location or occasion; secondary bloggers caption the series as Key West (consistent with her 1942 Florida schoolship period) - that attribution is not in the NARA record and is not carried. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-04
-
[6]Booklet of General Plans, PC-483 (1942), 'corrected to suit ship' - restricted-accountability booklet, 8 plates; scan hosted by maritime.org / Historic Naval Ships Association document library [other_primary]
- Locator
- maritime.org/doc/plans/pc483.pdf (8 plates; title sheet, general-information/dimensions sheet, profiles, deck plates, abbreviations)
- Finding type
- historical_record
- Finding
- The hull's own 1942 Booklet of General Plans survives: cover marked 'RESTRICTED ACCOUNTABILITY' with serial-number tracking, 'NUMBER & ORDER OF PLANS' sheet, 'CORRECTED TO SUIT SHIP' annotation, and plates covering general information/dimensions (length overall 173'8"), outboard profile, inboard profile, deck arrangements (pilot house, main deck, platform), and an abbreviations key. A full page-by-page review (image scan, no text layer; OCR assist) found arrangement and ordnance/stowage callouts only - this is the closest thing to an as-built primary document located for this hull.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942
- Population
- Ship's company c. 1942 (arrangement as built); Consolidated outfitting trades
- Limitations
- Archival lead only: the booklet documents arrangement and dimensions, not materials - it contains no insulation schedule, lagging specification, or asbestos callout (all 8 pages reviewed). Establishes hull configuration and compartment layout for a PC-461-class chaser as delivered to this hull; establishes nothing about asbestos aboard.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-05
-
[7]uboat.net Allied Warships, USS PC-483 (PC-483) - commanding-officer list and notable-events log sourced to war patrol reports and war diaries [other_primary]
- Locator
- uboat.net/allies/warships/8505.html 'Notable events' and 'Commands listed' sections
- Finding type
- vessel_history
- Finding
- Operational detail supplementing the DANFS narrative, sourced by the compiler to primary patrol documents: on 6 May 1942 PC-483 picked up 45 men from the American tanker Java Arrow, torpedoed and damaged by U-333 eight miles off Vero Beach, Florida - during her Miami schoolship period. At Pearl Harbor under the Hawaiian Sea Frontier she performed the documented harbor-escort routine: escorted USS Skate out for her 4th war patrol 11 April 1944 (Lt. P.R. Phillips); conducted exercises off Midway 28 July 1944 with USS Tang, USS Batfish, USS Litchfield, and USS Greenlet (Lt. R.W. Anderson); escorted USS Finback and USS Dragonet out 1 November 1944; escorted USS Icefish in 20 January 1945 (Lt. D.J. Creahan); with PC-487 escorted USS Thresher, USS Peto, and USS Tilefish out 31 January 1945; escorted USS Aspro in 11 February 1945; escorted USS Crevalle in 5 July 1945. Wartime CO sequence: Cammarn (Mar 1942), Moffett, Patrick, LeHardy, Phillips, Anderson, Creahan (Dec 1944 - late 1945).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- Crew under COs Cammarn through Creahan (1942-45); 45 Java Arrow survivors embarked 6 May 1942
- Limitations
- Specialist secondary compilation (Guomundur Helgason's uboat.net) - the events are sourced there to named primary documents (USS Skate 4th war patrol report; USS Greenlet July 1944 war diary) but those primaries were not pulled independently this session; 'ordered 26 Dec 1940' and the Midway-exercise detail rest on the compilation. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-06
-
[8]NavalCoverMuseum PC-483 ship page (designation history); corroborated by Navypedia 'Mejillon patrol craft' class table (Venezuelan Navy coastal forces) and shipbuildinghistory.com Consolidated yard build table (T. Colton) [other_primary]
- Locator
- navalcovermuseum.org/wiki/PC_483 designation history; navypedia.org/ships/venezuela/ven_cf_mejillon.htm class table row 'Camaron (ex-Rolla, ex-PC483)'; shipbuildinghistory.com/shipyards/yachtsmall/consolidated.htm build table, yard hull 3110
- Finding type
- vessel_history
- Finding
- Post-Navy trail corroboration: NavalCoverMuseum's designation history tracks PC-483 (commissioned 12 March 1942) -> laid up 6 April 1946 Atlantic Reserve Fleet, Florida Group -> decommissioned 18 June 1946 -> named ROLLA 15 February 1956 while in reserve -> struck 1 July 1960 -> CAMARON P-08 (Venezuelan Naval Service), transferred October 1960 -> reserve 1968 -> struck from the Venezuelan Navy Register 1978 -> fate unknown. Navypedia's Venezuelan fleet table lists 'Camaron (ex-Rolla, ex-PC483), P08, Consolidated SB New York' and confirms she was one of ten ex-US PC-461-class chasers forming Venezuela's Mejillon class (P-01 through P-10, entering Venezuelan service 1962-63); Navypedia dates her Venezuelan commissioning 15 October 1963 and her striking 1976-77. The shipbuildinghistory.com Consolidated yard table independently lists her as yard hull 3110 (design displacement 463 t, 173 ft, delivered 12 March 1942) with disposition 'Named Rolla 1956, to Venezuela 1961 as Camaron (P08), struck 1978' - a third transfer-year variant.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1960-1978
- Population
- Venezuelan Navy crew of Camaron P-08 (1960/63-c.1978)
- Limitations
- All three compilations are secondary. Date conflicts unresolved: Venezuelan transfer October 1960 (NavSource, NavalCoverMuseum, uboat.net) vs 1961 (shipbuildinghistory.com) vs Venezuelan commissioning 15 October 1963 (Navypedia - possibly US transfer vs Venezuelan commissioning); Venezuelan striking 1978 (NavSource, NavalCoverMuseum, shipbuildinghistory) vs 1976-77 (Navypedia). Carried in gaps; post-striking fate undocumented.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-07
-
[9]Era inference built on: DANFS spec block (diesel PC-461 class); NavSource specifications (Fairbanks-Morse diesels, Westinghouse gear, 2 shafts); Patrol Craft Sailors Association class data (173-ft steel-hull PC-461 class; 284 t; 5 officers + 60 enlisted; 421 ordered / 361 delivered); PC-483 Booklet of General Plans (steel arrangement as built) [other_primary]
- Locator
- DANFS spec block; NavSource specifications; ww2pcsa.org/patrol-craft.html class data table; pc483.pdf
- Finding type
- asbestos_application
- Finding
- A steel-hulled diesel submarine chaser built 1940-42 sits inside the Navy's documented asbestos-use era (GAO HRD-80-2); era-standard applications aboard a small diesel patrol craft of this period were engine and exhaust lagging, thermal insulation in machinery and accommodation spaces, gaskets, valve packing, electrical insulation, and fireproofing/deck coverings in the confined hull volume. As a diesel-powered vessel she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply, but the small-ship confined-space exposure dynamic applies.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1940-1978
- Population
- Consolidated construction trades (1940-42); crew (1942-46); yard/base trades during availabilities at Brooklyn, Miami, Treasure Island, Pearl Harbor; reserve-fleet caretakers; Venezuelan crew; post-1978 breakers/handlers unknown
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for PC-483; her own Booklet of General Plans (ev-05) contains arrangement callouts only, no insulation schedule. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-08
-
[10]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (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 (1940-42) and service era (1942-46), reserve-fleet period, and 1960 disposal/transfer.
- 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.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-09
-
[11]Batch-7858 search ledger (this record): original DANFS print text (archive.org); NHHC live DANFS (404); NavSource 12/010483; NARA muster-roll file unit NAID 192386476 + two NARA photo items + war-diary sweep; PC-483 Booklet of General Plans (maritime.org/HNSA); uboat.net event log; NavalCoverMuseum + Navypedia disposal corroboration; PCSA class data; GAO product page; NVR check; CourtListener four base queries; secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-rolla-pc483-01 through -18
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS PC-483 / Rolla / Camaron was found in the public sources searched. CourtListener base queries completed: 'USS Rolla' opinion search returned zero hits; 'USS Rolla' docket returned 85 fuzzy matches - all 20 reviewed hits are surname collisions (parties/attorneys/judges named Rolla), none vessel-related; 'PC-483' opinion and docket searches overflowed massively (3,496 and 24,583 counts) on tokenization noise ('PC' + '483' fragments) - all 20 reviewed hits per query are name collisions, none vessel-related. The modern Naval Vessel Register excludes ships disposed before 1987, so no NVR entry exists. Secondary web sweeps surfaced no qualifying case; the only 'asbestos' content found is marketing material in the excluded-source class - a navyshipexposure.com class page that asserts asbestos while printing demonstrable factual errors (it claims the class carried four GM diesels - the documented plant is two Fairbanks-Morse diesels), and a levylaw.com page asserting 'asbestos exposures at Consolidated Shipbuilding' without primary sourcing.
- 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 - and the 'PC-483' queries' tokenization noise means the overflow beyond the first 20 results was not individually reviewable; asbestos-qualified variants were queued to narrow them but could not run this session under the fleet request pacer (see search_ledger sl-14 through sl-16). Deck logs (RG 24), Consolidated build records, and Venezuelan-service records are undigitized/unlocated leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-rolla-pc483-10