Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]Dictionary of American Naval Fighting Ships, 'Pontiac IV (AF-20)' (NHHC DANFS; canonical history.navy.mil page returned 404 on 2026-09-20 - transcription mirror cited per batch-01 precedent) [nhhc_danfs]
- Locator
- DANFS 'Pontiac IV' entry, full text; mirror https://www.ibiblio.org/hyperwar/USN/ships/AF/AF-20_Pontiac.html
- Finding type
- vessel_history
- Finding
- DANFS documents the fourth Pontiac as a refrigerator ship built by Nakskov Skibs. A/C, Nakskov, Denmark in 1937, operated as Australian Reefer by J. Lauritzen of Esbjerg between New York and South America until the German occupation of Denmark; taken over by the U.S. Maritime Commission in summer 1941 under Public Law 101 (77th Congress) and Executive Order 8771 (1941-06-06), renamed Pontiac, and operated by U.S. Lines New York-Australia/New Zealand until 1942-02-05; transferred to the Navy on indefinite time charter 1942-05-11 and commissioned as Pontiac (AF-20) 1942-05-12. Service Force, Atlantic: Argentia/Maritime Provinces/Newfoundland supply runs 1942-1943; Norfolk-Trinidad-Guantanamo-San Juan sugar runs Jan-May 1944; Argentia, Iceland (June 1944), Bermuda, and Nova Scotia/Newfoundland runs through late 1944. On 1945-01-30 in heavy seas off Halifax her hull was holed by a loose paravane; she flooded forward and sank in 40 feet of water off MacNab Island; raised 1945-02-17, temporary repairs at Halifax, arrived Norfolk 1945-03-14; decommissioned there 1945-05-20, returned to the Maritime Commission 1945-05-21, struck from the Navy List 1945-06-02. DANFS data line: displacement 5,410; length 447'10"; beam 60'; draft 18'11"; speed 15.5 kts; complement 166; armament 2 x 3".
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1937-1945
- Population
- U.S. Navy crew, 1942-1945 (complement 166 per DANFS; 117 per 1944 BuShips-derived figure)
- Limitations
- Transcription mirror of the NHHC entry (canonical page unlocated - link rot noted in batch-01 and confirmed again 2026-09-20); ibiblio HyperWar mirror corroborates the data line. Establishes identity and service history only - contains no asbestos, insulation, or materials statement. DANFS dimensions (447'10" x 60') conflict materially with the Lloyd's registry dimensions (332.6 ft x 47.8 ft) and BuShips-derived data (354.2 ft oa x 47.0 ft) - see correction row and gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-01
-
[2]Lloyd's Register of Shipping 1938-1939 (Steamers), entry no. 70317 'Australian Reefer' (archive.org scan of the official register, HEC Heritage / Lloyd's Register Foundation digitization) [other_primary]
- Locator
- 1938-39 register, vessel index no. 70317, 'A' entries (djvu text ~line 39725); PDF page images at same identifier
- Finding type
- historical_record
- Finding
- The register entry for Australian Reefer (no. 70317, signal OZKH) records: owner J. Lauritzen, Esbjerg; Danish flag; built 1937 by Nakskov Skibs. A/S, Nakskov; registered dimensions 332.6 ft x 47.8 ft x 17.2 ft; propulsion 'Oil Engines' - 10-cylinder Burmeister & Wain (Copenhagen) diesel; single deck with partial shelter deck; refrigerating machinery fitted ('Ref. Mchy.'); cruiser stern. Confirms the hull was a diesel motorship reefer, not a steam vessel.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1938-1939 register edition (vessel as built 1937)
- Population
- Merchant crew, Danish service 1937-1940
- Limitations
- Register establishes identity, builder, machinery type, and fitted refrigerating machinery; it does not itemize insulation material in the main entry and contains no asbestos statement. Diesel plant means no boilers and no main steam-pipe insulation system aboard - materially different asbestos-relevant profile from steam auxiliaries. Does not establish presence or absence of asbestos in gaskets, packing, exhaust lagging, electrical insulation, or joiner materials.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-02
-
[3]Lloyd's Register 1937-38 refrigeration entry for Australian Reefer, as relayed in secondary compilation (Wikipedia article notes field citing Lloyd's Register 1937-38) [other_primary]
- Locator
- Wikipedia infobox 'Notes' field, citation [3] -> Lloyd's Register 1937-38
- Finding type
- asbestos_application
- Finding
- A secondary compilation citing the vessel's Lloyd's Register 1937-38 refrigeration-machinery entry describes the reefer plant as ammonia-based with granulated cork insulation. If accurate, the ship's dominant insulation system - the refrigerated cargo spaces - used cork, not asbestos.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1937-1938 register edition
- Population
- Merchant crew 1937-1941; Navy crew 1942-1945 (cargo spaces)
- Limitations
- PARTIAL verification only: the 1938-39 register entry inspected directly (ev-02) confirms refrigerating machinery but does not state insulation material; the cork detail is attributed to the 1937-38 register edition, which was not directly inspected this session (not among the archive.org HECROS scans). Cork insulation on the cold side, if confirmed, would not exclude asbestos in engine-room exhaust lagging, gaskets, electrical, or joiner applications. Does not establish presence or absence of asbestos aboard.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-03
-
[4]U.S. Maritime Administration, ShipHistory database - PONTIAC (AF-20), Detail 3950 (incl. digitized status cards 3950_7281AF.jpg, 3950_7281AB.jpg, 5QQ_01.png, 3950_AF.jpg) [marad_nrc]
- Locator
- ShipHistory Detail 3950, milestone table and status-card scans
- Finding type
- vessel_history
- Finding
- MARAD ShipHistory record: year built 1937; shipyard Nakskov Skibsvaerft; 2,321 gross / 1,289 net tons; type 'AF Store Ship'; fate 'Sold - Scrap'; milestones show entry and acquisition 1945-05-20 (NDRF custody), disposition and withdrawal 1948-05-17 ('CUST 1945 NDRF 1945'). Confirms the hull went to the James River NDRF after decommissioning and left MARAD custody to the scrapping buyer in May 1948.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1945-1948
- Limitations
- Custody/milestone data only - the record and its status-card images contain no asbestos, materials, or condition-survey information; supports no asbestos claim. The 1948 withdrawal date is the controlling disposal date (see correction row for the erroneous 1945/1946 variants in secondary sources).
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-04
-
[5]Shipscribe (Stephen S. Roberts, 2001), 'Class: PONTIAC (AF-20)' - compilation from Bureau of Ships/NARA records, FY1942 auxiliary data sheets [other_primary]
- Locator
- shipscribe AF-20 class page: construction/disposition tables, class notes, ship notes
- Finding type
- vessel_history
- Finding
- BuShips-derived details: completed 1937-03-22; single sister American Reefer (1936); laid up at New York 1940-06-30 after the German occupation of Denmark; Navy name/hull number assigned 1941-12-27; allocated by WSA to the Navy under bareboat charter; conversion (begun by the Maritime Commission) ran 1942-02-10 to 1942-05-11 at Arthur Tickle Engineering Works, Brooklyn, NY; complement 117 (1944); 4,300 HP; light/full displacement 3,081/5,410 tons; 354.2 ft oa x 47.0 ft x 20.4 ft. On 1945-04-09 BuShips reviewed the casualty and noted the ship's 'outstanding feature' was the absence of bulkheads in the cargo spaces - refrigeration-system air ducts made subdivision infeasible (found so in June 1942) - and that the ship was expected to founder on any uncontrolled flooding; raised 1945-02-18, considered not worth repair after long submergence; Navy memo 1945-04-13 declared constructive total loss; to buyer 1948-05-17, scrapped by 1948-09-13.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1937-1948
- Population
- Conversion-yard workers (Arthur Tickle Engineering Works, Brooklyn, Feb-May 1942); Navy crew 1942-1945
- Limitations
- Secondary compilation quoting official records (BuShips data sheets and correspondence); individual underlying documents not independently inspected - the 9 Apr 1945 BuShips review memo is the archival original (see NARA lead row). Contains no asbestos or insulation-material statement. 'Run aground on the Newfoundland coast' phrasing in the class note is imprecise - casualty and beaching were at Halifax, Nova Scotia (MacNab/McNabs Island), per DANFS and the Nova Scotia wreck database.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-05
-
[6]Executive Order 8771, 'Authorizing the United States Maritime Commission To Take Over Certain Foreign Merchant Vessels,' 6 Fed. Reg. 2759 (1941-06-07); implementing Public Law 101, 77th Congress (55 Stat. 242, approved 1941-06-06); corroborating fleet table: 'Foreign Passenger and Cargo Ships Taken Over by U.S Maritime Commission during World War II,' American Merchant Marine at War (usmm.org) [federal_register]
- Locator
- Federal Register vol. 6, no. 111, p. 2759; usmm.org/foreign.html fleet table (Australian Reefer row)
- Finding type
- regulatory
- Finding
- EO 8771 authorized the Maritime Commission to purchase, requisition, charter, or take over foreign merchant vessels lying idle in U.S. waters during the national emergency, including their 'apparel, furniture, spare parts and equipment, and all stores.' This is the legal instrument under which the idle Danish motorship Australian Reefer was taken over in summer 1941 - renamed Pontiac, and later bareboat-chartered to the Navy. The USMM fleet table records 40 Danish ships totaling 142,641 gross tons among the 84 voluntarily inactive foreign ships in U.S. ports on 1941-06-06, and lists 'Australian Reefer -> USS Pontiac' with wartime operator 'U.S. Army' (the Army Transportation Corps operating agreement before Navy bareboat charter).
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-09-20
- Study period
- 1941
- Population
- Seized Danish merchant crews (context); U.S. Lines GAA crew 1941-1942
- Limitations
- Legal-authority context only: the order is program-level and does not name this vessel (the ship's takeover under this authority is documented by DANFS, ev-01). Establishes the custody pathway and the later just-compensation mechanism ($1,374,255.86 paid to J. Lauritzen 1945-07-12 per MARAD-derived records), not any condition aboard the hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-06
-
[7]Government of Nova Scotia, Marine Heritage Shipwrecks Database (Maritime Museum of the Atlantic dataset, data.novascotia.ca), entry 'Pontiac - 1945' [museum_official]
- Locator
- Socrata dataset rq3a-h5hk, row vessel_name='Pontiac - 1945'
- Finding type
- historical_record
- Finding
- Provincial wreck database entry 'Pontiac - 1945' records date of wreck 1945-01-30, event type 'Serious damage,' location 'Ten miles off Chebucto Head.' Consistent with DANFS: damaged off Halifax, then beached/sank in shallow water off MacNab (McNabs) Island and raised - 'serious damage' rather than 'loss' correctly reflects that she was refloated. (Secondary accounts specify the tug Foundation Franklin beached her at Maughers Beach, McNabs Island.)
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1945
- Population
- Navy crew aboard at casualty (1945-01-30); Halifax salvage/tug crews
- Limitations
- Wreck-event record only - no casualty-detail fields populated in the open-data row beyond name/date/event/location, and no materials or asbestos information. 'Ten miles off Chebucto Head' is the casualty position; the actual sinking site was inshore at McNabs Island after tow/beaching. Hull was raised and later scrapped - no wreck remains at the site.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-07
-
[8]Corn, Jacqueline Karnell, and Jennifer Starr, 'Historical perspective on asbestos: Policies and protective measures in World War II shipbuilding,' American Journal of Industrial Medicine 11(3):359-373 (1987) [other_primary]
- Locator
- Abstract and article, AJIM 11(3):359-373
- Finding type
- asbestos_application
- Finding
- Peer-reviewed historical study documents extensive asbestos use as fireproofing and insulating material in U.S. shipbuilding during WWII - the program and era governing this hull's 1942 U.S. Navy conversion at Arthur Tickle Engineering Works, Brooklyn (Feb-May 1942), when the ship was armed, crewed, and refit for naval service.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-20
- Study period
- 1940s era documented; article 1987
- Population
- WWII conversion-yard workers and ship crews (class context)
- Limitations
- Program/era-level scholarship on U.S. wartime shipbuilding practice; does not name this vessel and does not establish that asbestos was installed during her conversion or remained aboard. Applies to the U.S.-conversion period; the 1937 Danish original construction is outside the study's scope. No quantity, location, condition, exposure, or causation established for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-08
-
[9]Batch-519 search ledger (this record): DANFS mirrors; MARAD ShipHistory 3950 + status cards; Lloyd's Register 1938-39 scan; shipscribe AF-20; Nova Scotia wreck DB; CourtListener name/hull/operator searches; NavSource timeline cross-check [other_primary]
- Locator
- search_ledger rows sl-uss-pontiac-af20-01 through sl-uss-pontiac-af20-10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, conversion specification listing insulation materials, hazmat disclosure, or docketed case naming Pontiac (AF-20) or Australian Reefer was found in the public sources searched (see search_ledger). CourtListener exact-name, hull-number, and former-name queries returned zero; the 166 opinions matching 'Pontiac' + asbestos are all name collisions (automobile dealerships, Pontiac MI municipal entities, unrelated surnames) - classified name collision / non-qualifying.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 2026-09-20
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - a 1937 motorship plus a 1942 U.S. Navy conversion are era-consistent with asbestos-containing gaskets, packing, exhaust lagging, electrical insulation, and joiner materials. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility. The hull was scrapped in 1948 - no extant fabric to survey.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-09
-
[10]NARA Guide to Federal Records: RG 24 (Navy deck logs), RG 19 (Bureau of Ships), RG 178 (U.S. Maritime Commission), RG 26 (U.S. Coast Guard) [other_primary]
- Locator
- RG 24 https://www.archives.gov/research/guide-fed-records/groups/024.html ; RG 19 https://www.archives.gov/research/guide-fed-records/groups/019.html ; RG 178 https://www.archives.gov/research/guide-fed-records/groups/178.html ; RG 26 https://www.archives.gov/research/guide-fed-records/groups/026.html
- Finding type
- historical_record
- Finding
- Archival leads (not retrieved - research-room or reproduction order required; no spend authorized): RG 24 holds USS Pontiac (AF-20) deck logs, May 1942-May 1945 (musters, casualties, underway records incl. the 1945-01-30 casualty). RG 19 (BuShips) holds the conversion file for the Arthur Tickle refit (Feb-May 1942) and the 1945-04-09 BuShips casualty-review memo quoted in the shipscribe compilation - the likeliest repositories for any conversion materials spec. RG 178 holds Maritime Commission requisition/title and just-compensation files for Australian Reefer/Pontiac. RG 26 holds the 1941 USCG seizure documentation for the Danish fleet.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-20
- Study period
- 1941-1948 records
- Limitations
- Record-group mapping only - no box-level retrieval performed; existence of asbestos-specific documents for this hull is unknown until surveyed in person. Nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-10
-
[11]MARAD ShipHistory milestones and shipscribe disposition table vs. NavSource/Wikipedia secondary timeline [other_primary]
- Locator
- MARAD milestone table; shipscribe disposition row; NavSource AF-20 page; Lloyd's 1938-39 entry 70317
- Finding type
- vessel_history
- Finding
- Source discrepancies resolved or logged: (a) disposal date - NavSource and Wikipedia (citing MARAD status card) give 'sold for scrapping 7 May 1945 to Patapsco Scrap Corp. for $33,669 (PDX-447),' which precedes decommissioning (1945-05-20) and the title requisition (1945-07-12) and is therefore implausible; shipscribe gives 'MA sale 10 May 48 / to buyer 17 May 48 / scrapped by 13 Sep 48,' matching the MARAD milestone withdrawal date 1948-05-17 - the 1948 sequence is adopted as controlling. (b) Raised date - DANFS 1945-02-17 vs shipscribe 1945-02-18; DANFS adopted, conflict logged in gaps. (c) Dimensions - DANFS 447'10" x 60' conflicts with Lloyd's registry 332.6 ft x 47.8 ft and BuShips-derived 354.2 ft oa x 47.0 ft; registry figures describe the hull as built and are carried, DANFS data-line discrepancy logged. (d) Wikipedia infobox 'delivered to be scrapped 22 May 1946' is unexplained and inconsistent with MARAD milestones; not adopted.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1945-1948
- Limitations
- Resolves publication-level discrepancies using the stronger/official sources; the PDX-447 contract date reading (1945 vs 1948) rests on the status-card transcription - the card images exist in MARAD Detail 3950 and could settle it definitively on close inspection. No asbestos content in any source compared.
- Atlas source
- true
- Evidence ID
- ev-uss-pontiac-af20-11