Evidence
9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).
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[1]DANFS, Silversides (SS-236) - construction, fourteen war patrols, decommission/reserve/stricken history (HyperWar/ibiblio verbatim transcription) [nhhc_danfs]
- Locator
- DANFS service narrative and spec block
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 4 November 1940 at Mare Island Navy Yard, Vallejo; launched 26 August 1941 (sponsor Mrs. Elizabeth H. Hogan); commissioned 15 December 1941, Lt. Comdr. C. C. Burlingame. Fourteen war patrols spanning the entire Pacific war; Presidential Unit Citation covering four patrols; 12 battle stars; famous episodes include the Christmas Eve 1942 submerged emergency appendectomy and escorting the crippled Salmon to Saipan (Oct-Nov 1944). Decommissioned at New London 17 April 1946; placed in service 15 October 1947 as Naval Reserve training ship at Chicago, where she remained for the rest of her service; reclassified AGSS-236 6 November 1962; stricken 30 June 1969.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1940-1969
- Population
- Mare Island construction trades (1940-41); crew (1941-1946); Chicago Naval Reserve trainees (1947-1969)
- Limitations
- Ship-specific history only; contains no asbestos or material content. Tonnage/sinkings narrative spans the patrol record; the NHL nomination's tally (23 ships, 90,080 tons) is carried in its own row.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-01
-
[2]NPS National Register of Historic Places / NHL nomination text, USS Silversides (SS-236), NRIS 72000453 (nomination prepared while berthed at Navy Pier, Chicago) [nps]
- Locator
- Nomination sections 7 (description) and 8 (significance)
- Finding type
- historical_record
- Finding
- The NHL nomination describes this hull as a Gato (Drum)-class fleet submarine of all-welded construction with all-electric drive: four 9-cylinder Fairbanks-Morse diesels at 1,600 hp each driving GE generators and motors for 5,400 shaft hp; 252-cell Gould battery; 312 ft; 1,525 t surfaced / 2,410 t submerged; complement 72 enlisted + 8 officers. Credits 23 confirmed sinkings totaling 90,080 tons - third among U.S. submarines and the highest-scoring surviving American submarine; 14 war patrols; PUC for 4 patrols; 12 battle stars. At nomination she was a museum exhibit at Navy Pier, Chicago, under the Combined Great Lakes Navy Association, undergoing a check of all systems with the intention of returning her to surface operation on Lake Michigan.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1941-1945; nomination ca. 1985-86
- Population
- Crew (1941-1946); Chicago Naval Reserve trainees and visitors (1947-1987); Muskegon museum visitors (1987-present)
- Limitations
- Ship-specific federal documentation; contains no asbestos, hazmat, or material content. Nomination prints launch date as 'August 28, 1941' - a typo; DANFS gives 26 August (carried in the DANFS row). The return-to-operation ambition is a museum-era statement, not an engineering record.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-02
-
[3]NPS National Register Information System record, U.S.S. Silversides, NRIS 72000453 [nps]
- Locator
- NRIS asset detail page
- Finding type
- historical_record
- Finding
- NRIS confirms National Register listing of USS Silversides (SS-236), reference number 72000453, listed 18 October 1972 while still at Chicago - the only boat in this batch listed on the Register before leaving Navy custody; National Historic Landmark designation 14 January 1986. NRIS location field shows the post-1987 Muskegon address.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1972; 1986
- Limitations
- Administrative designation record only; contains no asbestos, condition, or material information.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-03
-
[4]USS Silversides Submarine Museum official site - Dry Dock USS Silversides project announcement (June 5, 2026) and FAQ; Michigan SHPO/MiPlace USS Silversides (SS-236) NHL page [museum_official]
- Locator
- silversidesmuseum.org dry-dock page and FAQ; miplace.org USS Silversides NHL page
- Finding type
- vessel_history
- Finding
- Museum/SHPO records: in 1987 the submarine was moved to Muskegon, Michigan, to serve as the centerpiece of the USS Silversides Submarine Museum (Michigan SHPO NHL page). In June 2026 the museum announced a ~$3.5 million dry-dock preservation project: July-October 2026 tow across Lake Michigan to Fincantieri Bay Shipbuilding, Sturgeon Bay, WI (tow by Basic Towing, Escanaba; project/construction management by Valkor Energy Services); scope is hull cleaning (zebra/quagga mussel removal), detailed inspection of tanks/torpedo doors/free-flood spaces, structural steel repair, and protective coatings rated 15-20 years - the first full dry-dock preservation in more than 50 years, supported by a $750,000 NPS Save America's Treasures grant. Public materials contain no asbestos or hazardous-material disclosure.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1987; 2026
- Population
- Museum staff/volunteers; Fincantieri Bay Shipbuilding trades (2026, planned)
- Limitations
- Ship-specific museum record; the published work scope is hull preservation only - no ACM survey or hazmat content is disclosed. The museum's history pages were reachable only via the events/dry-dock paths in this pass.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-04
-
[5]Gato-class profile (ships-worktrees class-f/gato-class.class.json) - class-level propulsion and asbestos-relevant pathway context [other_primary]
- Locator
- class-f/gato-class.class.json (house class profile)
- Finding type
- asbestos_application
- Finding
- Gato-class context: diesel-electric fleet submarines with no boilers or steam plant; era-consistent asbestos pathways for the class include diesel-exhaust lagging, engine gaskets and packing, acoustic/thermal hull insulation, galley and refrigeration materials, and battery/electrical materials. Construction (1940-41) and service-era overhauls (incl. the 1944 Mare Island overhaul in DANFS) fall inside the Navy's peak asbestos-use era.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-18
- Study period
- 1940-1946 (era)
- Population
- Gato-class construction and maintenance trades (era context)
- Limitations
- Class/era inference only - does not name this hull, does not establish that any asbestos-containing material is or was installed aboard SS-236, and does not establish quantity or present-day presence. No hull-specific insulation survey or material list was located.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-05
-
[6]Davis v. General Electric Company, N.D. Cal. No. 3:08-cv-00228 (complaint, ECF doc. 1); plus MDL-875 tag-along complaint (J.P.M.L. docket 1245688, doc. 6648-2 analog) and Simpson v. AWC 1997 Corp., N.D.N.Y. No. 1:08-cv-00545 [court_record]
- Locator
- Davis complaint exposure schedule p.46-47; MDL 875 doc. 6648-2 vessel list (OCR p.23); Simpson remand order quoting complaint
- Finding type
- litigation_documented
- Finding
- Name collision resolved: every 'Silversides' asbestos-litigation hit names the Sturgeon-class nuclear submarine USS Silversides (SSN-679, in service 1972-1994), not this hull. Davis v. GE's complaint lists 'SILVERSIDES (SNN-679)' for a Puget Sound Naval Shipyard marine mechanic, 1983-1986; an MDL-875 tag-along complaint lists 'SILVERSIDES (SSN-679) 1972-1989' inside a nuclear-submarine roster; Simpson v. AWC's quoted complaint lists 'Silversides' among Electric Boat nuclear hulls (NR-1, Ohio-class, hull numbers 640-726). SS-236 was a Chicago museum ship in those periods.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1972-1994 (SSN-679 era)
- Population
- Not this hull's population - SSN-679-era shipyard trades
- Limitations
- Correction row - the matched dockets concern a different hull (SSN-679). Do not carry any of these as SS-236 exposure evidence; the nuclear boat's product identifications (e.g., Unibestos-era insulation) are not attributed to this Gato-class hull.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-06
-
[7]Loader v. USS Silversides, E.D. Mich. No. 2:90-cv-72933 (nature of suit 340 Marine personal injury) [court_record]
- Locator
- E.D. Mich. docket 2:90-cv-72933 (metadata only)
- Finding type
- litigation_documented
- Finding
- A 1990 Eastern District of Michigan marine personal-injury docket names the museum vessel itself as defendant - classified as OTHER LITIGATION (non-asbestos): consistent with a visitor-injury posture on the museum ship at Muskegon, not an exposure case. No documents are retrievable from the public index.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1990
- Population
- Museum visitors (context)
- Limitations
- Non-asbestos litigation against the museum vessel - not an asbestos or exposure finding. No documents retrieved; the case's allegations and disposition are not characterized beyond docket metadata.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-07
-
[8]CourtListener API v4 searches (2026-09-16/18): "USS Silversides" type=r/o; "Silversides" asbestos type=r/o; "SS-236" type=r/o and "SS-236" asbestos type=r/o [court_record]
- Locator
- search_ledger rows sl-uss-silversides-ss236-06 through sl-uss-silversides-ss236-09
- Finding type
- historical_record
- Finding
- No qualifying asbestos litigation naming THIS hull (SS-236) located: 'USS Silversides' opinions returned zero; 'Silversides'+asbestos RECAP hits all resolved to SSN-679 (see correction row); 'SS-236' hits were docket-number and string collisions only.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 2026-09-16/18
- Limitations
- Absence of a located public docket does not prove absence of exposure or of filings - state-court and non-digitized records are not covered, and CourtListener indexes are not exhaustive. Opinion-type searches were rate-limited (HTTP 429) once and re-run successfully after backoff; the sweep logged here reflects the completed queries (see search_ledger).
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-08
-
[9]Batch-14 search ledger (this record): DANFS mirror; NPS NRIS + NHL nomination; USS Silversides Submarine Museum official pages; CourtListener exact-name and hull-number sweeps; LOC/HAER survey check [other_primary]
- Locator
- search_ledger rows sl-uss-silversides-ss236-01 through sl-uss-silversides-ss236-10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located for SS-236: no asbestos survey, abatement contract, museum hazmat disclosure, HAER documentation, or docketed case naming this hull was found in the public sources searched - every candidate 'Silversides' litigation hit resolved to SSN-679 (see search_ledger).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 2026-09-18
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - the hull's WWII-configuration presentation and largely operational machinery are consistent with retained era materials. Does not establish that asbestos is or is not present; does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-silversides-ss236-09