Evidence
5 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-5).
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[1]research packet ad-packet.md (1 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-leon-apa48-pkt-ad-packet-md
-
[2]DANFS-derived identity via Wikipedia page for USS Leon (APA-48), which incorporates public-domain DANFS text (planned as USS Sea Dolphin AP-93, renamed Leon 3 Oct 1942, reclassified APA-48 on 1 Feb 1943; Ingalls Shipbuilding; WWII service record; four battle stars) [nhhc_danfs]
- Locator
- Infobox and history sections
- Finding type
- vessel_history
- Finding
- USS Leon (APA-48) was a Bayfield-class attack transport named for Leon County, Florida and Leon County, Texas. Laid down 6 February 1943 by Ingalls Shipbuilding, Pascagoula, Mississippi; launched 19 June 1943 as Sea Dolphin; commissioned 12 February 1944. Served in the Pacific in World War II: Saipan (June 1944), Angaur in the Palaus (September 1944), Leyte (October and November 1944), Lingayen Gulf (January 1945), Okinawa (1 April 1945); participated in Operation Magic Carpet. Awarded four battle stars. Decommissioned 7 March 1946; sold 1947 to the Isthmian Steamship Company and renamed Steel Chemist; scrapped 1971.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-25
- Limitations
- DANFS-direct (history.navy.mil) page was not loaded (HTTP 500 fleet-wide); identity rests on DANFS text republished via Wikipedia. No fabrication; DANFS-direct non-load disclosed.
- Atlas source
- true
- Evidence ID
- ev-uss-leon-apa48-01
-
[3]CourtListener API v4 opinion search via Studio helper cl-auth-search.py, query '"USS Leon" APA-48', type=opinion, limit 10 — HTTP 200 authenticated, count 0, no results [court_record]
- Finding type
- litigation_documented
- Finding
- Litigation sweep completed: CourtListener opinion search for exact ship name and hull number combined returned zero results. This is a completed negative search, not a finding that no litigation exists (CourtListener coverage is incomplete).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-25
- Limitations
- CourtListener coverage is incomplete; only the opinion index was queried. A zero result does not establish absence of litigation.
- Atlas source
- true
- Evidence ID
- ev-uss-leon-apa48-02
-
[4]Writer 3 research sweep, 2026-09-25 (see search_ledger for query log) [other_primary]
- Finding type
- historical_record
- Finding
- Negative finding: no ship-specific asbestos documentation was located for this hull in the 2026-09-25 research sweep. No hull asbestos survey, HAER recordation, abatement record, or qualifying asbestos litigation was identified in authoritative sources. Web searches returned only attorney-marketing pages (asbestos-ships.com, sokolovelaw.com, simmonsfirm.com, mesotheliomavets.com) — excluded per brief.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- context_only
- Accessed
- 2026-09-25
- Limitations
- Documents the researcher's own negative search result, not an authoritative finding of absence. NARA/HAER holdings were not exhaustively searched.
- Atlas source
- true
- Evidence ID
- ev-uss-leon-apa48-03
-
[5]General historical context on WWII-era U.S. naval construction materials; no hull-specific source [other_primary]
- Finding type
- asbestos_application
- Finding
- Era context only: as a 1943-built Bayfield-class attack transport with a steam propulsion plant (Westinghouse geared turbine, two Foster Wheeler D-type boilers, 8,500 shaft horsepower), the ship's engineering plant and hull would have carried era-standard insulation, lagging, gaskets, and packing materials typical of early-1940s naval construction. Whether any of those materials contained asbestos, and in what condition, was never documented for this hull.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-25
- Limitations
- Class/era inference only — never a ship-specific finding. Does not establish that asbestos was present aboard this hull, nor exposure for any individual.
- Atlas source
- true
- Evidence ID
- ev-uss-leon-apa48-04