Evidence
9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).
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[1]CourtListener opinion search: 'USS Cannon' [court_record]
- Finding type
- litigation_documented
- Finding
- CourtListener opinion search 'USS Cannon' returned 32 result(s) (2026-10-07); individual records not reviewed
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Limitations
- hit count only — underlying dockets/opinions not individually reviewed; name query may match same-named vessels
- Evidence ID
- uss-cannon-de99-cl-name-opinion
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[2]CourtListener docket search: 'USS Cannon' [court_record]
- Finding type
- litigation_documented
- Finding
- CourtListener docket search 'USS Cannon' returned 1146 result(s) (2026-10-07); individual records not reviewed
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Limitations
- hit count only — underlying dockets/opinions not individually reviewed; name query may match same-named vessels
- Evidence ID
- uss-cannon-de99-cl-name-docket
-
[3]CourtListener opinion search: 'DE-99' [court_record]
- Finding type
- litigation_documented
- Finding
- CourtListener opinion search 'DE-99' returned 210137 result(s) (2026-10-07); individual records not reviewed
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- ship_specific
- Limitations
- hit count only — underlying dockets/opinions not individually reviewed
- Evidence ID
- uss-cannon-de99-cl-hull-opinion
-
[4]CourtListener docket search: 'DE-99' [court_record]
- Finding type
- litigation_documented
- Finding
- CourtListener docket search 'DE-99' returned 647519 result(s) (2026-10-07); individual records not reviewed
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- ship_specific
- Limitations
- hit count only — underlying dockets/opinions not individually reviewed
- Evidence ID
- uss-cannon-de99-cl-hull-docket
-
[5]DANFS, Cannon (DE-99) (builder, dates, convoy service, Brazil transfer; verbatim transcription - live NHHC page serves 404) [nhhc_danfs]
- Locator
- DANFS entry, specifications block + service narrative
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: launched 25 May 1943 by Dravo Corp., Wilmington, Del.; sponsored by Mrs. E. H. Cannon (the namesake's mother); commissioned 26 September 1943, Lt. Cmdr. G. Morris in command, reported to the Atlantic Fleet; cleared Philadelphia 30 November 1943 for Trinidad (arrived 5 December), beginning a year escorting convoys Trinidad-Recife-Rio de Janeiro plus one Brazil-Gibraltar voyage guarding tanker convoys supporting Mediterranean operations; arrived Natal, Brazil, 4 December 1944 to train a Brazilian crew; decommissioned and transferred to Brazil at Natal 19 December 1944; served in the Brazilian Navy as Baependi; bracketed note reads 'Baependi was finally discarded in 1975.' Specifications block: 1,240 t.; 306 ft; 21 k.; complement 186; class Cannon. Namesake 1stLt. George H. Cannon, USMC, killed during the Japanese bombardment of Sand Island, Midway, 7 December 1941, posthumously awarded the Medal of Honor.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-19
- Study period
- 1942-1944 (USN); bracket note to 1975
- Population
- Dravo Corp. Wilmington construction trades 1942-43; wartime crew (design complement 186)
- Limitations
- DANFS documents service history and specifications, not materials or asbestos content. Entry omits a laid-down date (carried from secondary compilations - see gaps); the 'discarded 1975' bracket conflicts with the operating navy's own record (baixa 8 May 1973, sold for scrapping 1974 - see ev-uss-cannon-de99-03). Mirror transcription cited because the live NHHC page returns 404.
- Atlas source
- true
- Evidence ID
- ev-uss-cannon-de99-01
-
[6]Marinha do Brasil, Diretoria do Patrimonio Historico e Documentacao da Marinha (DPHDM), 'Baependi - Contratorpedeiro de Escolta/Aviso-Oceanico, 1944-1973' (official ship historical file, 10-page PDF) [other_primary]
- Locator
- DPHDM PDF pp.1-3 (incorporation, machinery), pp.6-8 (refit chronology), p.9 (baixa, commander list)
- Finding type
- vessel_history
- Finding
- Official Brazilian Navy record for this hull under its Brazilian identity: delivered at Natal 19 December 1944 (ceremony by Vice-Almirante Williams Munroe, U.S. Fourth Fleet, and Contra-Almirante Ary Parreiras); incorporated via Avisos Ministeriais 1.891/1.896 into the Forca Naval do Nordeste; first Brazilian ship of the name, honoring the city of Baependi, Minas Gerais; first commander Capitao-de-Corveta Raimundo da Costa Figueira; WWII convoy-escort, anti-submarine, and air-sea-rescue duties; oceanographic conversion at the Arsenal de Marinha do Rio de Janeiro 18 March-6 April 1962; reclassified Aviso Oceanico (U-27) 1964 with A/S armament removed; 19 dockings 1944-62, almost all at the Rio arsenal; decommissioned by Aviso Ministerial n. 0470, baixa 8 May 1973, disarmament muster 1 June 1973 at Rio de Janeiro. File itemizes machinery: four GM 16-278A diesel-generator sets driving Westinghouse QVDC-8145 DC propulsion motors, two per shaft - a diesel-electric plant with no boilers or steam system.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-19
- Study period
- 1944-1973
- Population
- Brazilian Navy crew 1944-1973 (216 at incorporation; lotacao reduced from 1953 per file); Arsenal de Marinha do Rio de Janeiro refit workers (19 dockings 1944-62)
- Limitations
- Official foreign-navy historical file - confirms Brazilian-era custody, refit history, and machinery but contains no asbestos information. Its keel date (5 February 1943) conflicts with U.S. compilations (14 November 1942) - carried in gaps. Does not document scrapping-site or buyer details.
- Atlas source
- true
- Evidence ID
- ev-uss-cannon-de99-02
-
[7]Disposition-date reconciliation: Marinha do Brasil DPHDM file (baixa 8 May 1973) + Navios de Guerra Brasileiros (NGB) ship record (sold for scrapping 1974) vs. DANFS transcription bracket 'Baependi was finally discarded in 1975' [other_primary]
- Locator
- DPHDM PDF p.9 (Aviso Ministerial n. 0470, Mostra de Desarmamento 1 June 1973); naval.com.br NGB B003 chronology (1973 baixa; 1974 'vendido para desmanche')
- Finding type
- historical_record
- Finding
- The widely repeated 'Baependi discarded in 1975' figure - the bracketed extension in DANFS transcriptions, echoed by Wikipedia and downstream sites - is contradicted by the operating navy's own record: the DPHDM file states decommissioning (baixa) 8 May 1973 by Aviso Ministerial n. 0470, with the disarmament muster held 1 June 1973 at Rio de Janeiro, and Navios de Guerra Brasileiros records the hull sold for scrapping (desmanche) in 1974. No Brazilian service beyond mid-1973 is documented.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-19
- Study period
- 1973-1974
- Limitations
- Corrects the disposal year repeated in downstream English-language records; scrapping-site and buyer records not located. '1975' survives only in the DANFS transcription bracket and copies of it; the underlying DANFS narrative itself ends at the 1944 transfer.
- Atlas source
- true
- Evidence ID
- ev-uss-cannon-de99-03
-
[8]DANFS specifications block (Cannon class; 21 kt; complement 186) + DPHDM machinery section (four GM 16-278A diesel-generator sets, Westinghouse DC propulsion motors - no boilers or steam system) + GAO HRD-80-2 product page (Navy asbestos-use era); Cannon-class profile (class-c worktree) [other_primary]
- Locator
- DANFS specifications block; DPHDM PDF p.3 (machinery); GAO product page HRD-80-2 (full text blocked, HTTP 403); class-c cannon-class.class.json
- Finding type
- asbestos_application
- Finding
- Era/design inference: a Cannon-class (DET) destroyer escort built 1942-43 carried no boilers and no steam plant - four GM diesel-generator sets with electric drive per DANFS and the Brazilian DPHDM machinery section - so the heavy steam-ship asbestos categories (boiler and steam-line lagging) do not apply; the era-standard set for a diesel-electric escort is exhaust insulation, gaskets and packing, electrical insulation, brake linings, and deck coverings. Construction fell inside the documented Navy asbestos-use era (material substitution not begun until the early 1970s, per GAO HRD-80-2 program record).
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-19
- Study period
- 1942-1973
- Population
- Dravo Wilmington construction trades 1942-43; USN crew 1943-44; Brazilian Navy crew 1944-73
- Limitations
- Class/era and design inference only - NOT a hull-specific finding; no hull-level insulation specification, material schedule, or survey located for this hull or the class. Does not quantify material, does not establish any individual's exposure, and does not address the 1944-73 Brazilian refit history. Builder Dravo Corp. Wilmington is not an Atlas shipyards.json entry - yard-level context unavailable.
- Atlas source
- true
- Evidence ID
- ev-uss-cannon-de99-04
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[9]Batch-299 search ledger (this record): NHHC/DANFS transcription; Brazilian Navy DPHDM file; NavSource/uboat.net/NGB chronologies; CourtListener API v4 (throttled) + site:courtlistener.com and web-index litigation sweeps; Atlas shipyards.json [other_primary]
- Locator
- search_ledger rows sl-uss-cannon-de99-01 through sl-uss-cannon-de99-08
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located for DE-99: no hull ACM survey, abatement contract, or custodian hazmat disclosure (hull scrapped in Brazil 1974); no qualifying litigation naming USS Cannon or DE-99 surfaced in accessible indexes - CourtListener API v4 was throttled for the entire session (HTTP 429, 125/day shared quota; repeated retries across ~30 minutes never cleared), and site:courtlistener.com plus web-index sweeps returned only criminal-docket name collisions and marketing-site ship-list mentions (asbestos-ships.com, asbx.org), all classified non-qualifying.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-19
- Study period
- 2026-09-19
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - era materials could have persisted aboard until breaking in Brazil. CourtListener throttling leaves opinion/docket exhaustion incomplete (see search_ledger); NARA RG 24 deck logs, BuShips material books (RG 19), and Brazilian scrapping records are unretrieved leads.
- Atlas source
- true
- Evidence ID
- ev-uss-cannon-de99-05