Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
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[1]ShipScribe, 'USS APc-1 Class' - APc-1 class construction/disposal tables and ship notes compiled from official U.S. Navy records (BuShips/NVR data cards); corroborated by NavSource USS APc-19 page and shipbuildinghistory APc table [other_primary]
- Locator
- APc-1 class construction table row 19 and disposal table row 19; ship note 'APc-19: Ex AMc-170. Sold (delivered) by MC to Charles E. Kaltenbach, Laguna Beach, Cal.'; NavSource archives/09/23/23019.htm chronology
- Finding type
- vessel_history
- Finding
- APc-19 was ordered 1942-02-19 under the AMc-150-199 coastal-minesweeper contract as AMc-170; built by Hodgdon Bros., East Boothbay, ME; keel 1942-03-12 per the ShipScribe class table (NavSource gives 1942-05-12 - unresolved); launched 1942-08-01; commissioned USS APc-19, 1943-01-12, LT. Charles B. Link, USNR, in command. Decommissioned 1946-02-15 at Naval Station Treasure Island, San Francisco; struck from the Naval Register 1946-02-26; sold (delivered) by the Maritime Commission to Charles E. Kaltenbach, Laguna Beach, CA - disposal 1947-01-29, MA sale recorded 1947-01-28 (NavSource gives 'sold 21 January 1947, removed 29 January 1947'). Final disposition undocumented.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1942-1947
- Population
- Crew (complement ~21-25); construction trades at Hodgdon Bros., East Boothbay (1942); embarked troops (design capacity ~66-74)
- Limitations
- Establishes identity, construction, and disposal milestones only - no asbestos or materials information. ShipScribe, NavSource, and shipbuildinghistory are secondary compilations of official records, not the records themselves; no DANFS entry exists for this hull (NavSource states so explicitly and NHHC candidate URLs 404). Keel date conflicts across sources (1942-03-12 vs 1942-05-12) and the January 1947 sale date varies by a week (21 vs 28 Jan) - carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-170-amc170-01
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[2]ShipScribe APc-1 class notes (compiled from CNO/BuShips program records) [other_primary]
- Locator
- ShipScribe APc-1 class 'Class Notes' section and ship note for APc-19; NavSource 'Originally planned as Coastal Minesweeper AMc-170'
- Finding type
- vessel_history
- Finding
- The designation 'AMc-170' was a planned coastal-minesweeper contract number only, not a commissioned vessel. On 1942-01-19 CNO directed construction of fifty AMc coastal minesweepers (AMc-150 to AMc-199); on 1942-04-13 CNO requested the fifty be built instead as 'raider transports, AP'; the District Craft Development Board recommended the change on 1942-04-20 and the category 'Coastal transport (small), APc' was created 1942-04-22. AMc-150 through AMc-199 became APc-1 through APc-50 'though not respectively' - AMc-170 specifically became APc-19 (ship note: 'Ex AMc-170'). No minesweeper AMc-170 ever entered service; the hull was completed and commissioned as the small coastal transport APc-19.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1942 (program change)
- Limitations
- Class-program documentation confirming the designation change; the keel was laid (March or May 1942) under the AMc contract and the redesign occurred before completion. Establishes vessel TYPE (small coastal transport, not minesweeper) and the consolidation mapping; contains no asbestos or materials information.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-170-amc170-02
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[3]HyperWar, 'Ships of the U.S. Navy, 1940-1945 - US Navy Miscellaneous Transports' - official-record compilation of APc class characteristics [other_primary]
- Locator
- APc class specification block and unit table (APc-19 inside the APc-3-20 commissioned-1942-43 range)
- Finding type
- vessel_history
- Finding
- Class configuration: the APc-1 class were small wooden-hulled coastal transports (103 ft, ~234 tons full load, diesel engines, single screw, ~9-10 knots) officially described as 'Similar to the Accentor Class AMc's' - the coastal-minesweeper design from which the type was adapted. APc-19 falls within the compilation's APc-3-20 block, commissioned 1942-43. A wooden hull and diesel propulsion mean the class carried no boilers or steam plant - the machinery category most associated with documented WWII-era asbestos insulation aboard larger combatants.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-22
- Study period
- 1942-1943 (construction era)
- Population
- Shipyard workers and class crews (class context)
- Limitations
- Class-level specification; documents the type's plant, not materials aboard this hull. Absence of a steam plant removes the most commonly documented WWII asbestos pathway but does not establish that no asbestos-containing material was aboard (gaskets, exhaust insulation, electrical insulation, fireproofing compounds remain undocumented either way).
- Atlas source
- true
- Evidence ID
- ev-uss-amc-170-amc170-03
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[4]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 that asbestos was used extensively as a fireproofing and insulating material in U.S. shipbuilding during WWII - the era and program context in which this 1942 wooden-hulled coastal transport was built - and that wartime demand drove unprecedented asbestos utilization across naval construction.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-22
- Study period
- 1940s era documented; article 1987
- Population
- WWII shipyard workers and ship crews (era context)
- Limitations
- Era-level scholarship on WWII shipbuilding generally; does not name this vessel or the APc-1 class and does not establish that asbestos was or remains aboard this hull, nor quantity, location, condition, individual exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-170-amc170-04
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[5]NavSource Online, Service Ship Photo Archive - USS APc-19 page (volunteer archival compilation, not an official record) [other_primary]
- Locator
- Awards block, commanding-officer table, and specification block, USS APc-19 page
- Finding type
- vessel_history
- Finding
- NavSource lists APc-19's awards as the American Campaign Medal and World War II Victory Medal only - no campaign or battle stars - and a five-officer command chronology ending with LTjg. Robert T. Cox, USNR (September 1945 to decommissioning 1946-02-15). Specification block: 103'3" x 21'3" x 9'3", four single 20mm AA mounts, one Atlas 6HM2124 diesel, 300 shp, single propeller; troop capacity 66; complement 3 officers, 22 enlisted. Detailed wartime employment is not documented on the page.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1943-1946
- Population
- Crew (1943-1946)
- Limitations
- Single secondary source; award display implies stateside/American-theater service but no operational history, deck log, or official record corroborates where the vessel actually served between January 1943 and its February 1946 West Coast decommissioning - employment is a gap, not a finding. Establishes no asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-170-amc170-05
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[6]Batch-1519 search ledger (this record): NHHC/DANFS (no entry exists); NavSource; ShipScribe; HyperWar official compilation; shipbuildinghistory; CourtListener API v4 (throttled - blocked at first attempt, retried once); MARAD ShipHistory (site error - blocked); NARA catalog (JS shell - undetermined); NVR (coverage excludes pre-1987 disposals); web-level ship-name and asbestos-litigation searches [other_primary]
- Locator
- search_ledger rows sl-uss-amc-170-amc170-01 through sl-uss-amc-170-amc170-10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or docketed asbestos case naming APc-19, AMc-170, or AMC-170 was found in the public sources searched (see search_ledger). No litigation of any kind naming the vessel was located.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 2026-09-22
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - it reports that no qualifying record was found. The CourtListener opinion/RECAP name search was throttled at the daily cap at query time (2800/day), so the litigation sweep is incomplete and flagged rather than failed silently; web-level litigation searches found no asbestos case naming the vessel. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-170-amc170-06
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[7]NARA record-path mapping: RG 24 deck logs (1943-1946); USCG Merchant Vessels of the United States annuals (post-1947 private ownership chain); Maritime Commission disposal file; Hodgdon Bros. yard records, East Boothbay [other_primary]
- Locator
- NARA record-group structure; USCG MVUS annual series; MARCOM disposal-file series
- Finding type
- historical_record
- Finding
- Archival leads not retrieved: NARA RG 24 deck logs for APc-19 (College Park; digitization status undetermined - catalog API returned a JavaScript shell, not records) would establish the undocumented 1943-46 employment; USCG Merchant Vessels of the United States annuals could document the post-1947 private documentation chain under Charles E. Kaltenbach (Laguna Beach) and the hull's ultimate fate; the Maritime Commission disposal file would cover the January 1947 transfer and sale; the Hodgdon yard still operates in East Boothbay and builder records may survive.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-22
- Limitations
- Record-path mapping only - not evidence about this hull's materials or condition. No box-level retrieval performed and no reproduction ordered; digitization status unverified for each holding. Survival of 1942 contract records at the Hodgdon yard is assumed, not confirmed.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-170-amc170-07