Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
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[1]NavSource Online: Mine Warfare Vessel Photo Archive, file 11/03143 - 'YP-381 ex-AMc-143' vessel page (J. M. Radigan/D. Wright compilation) [other_primary]
- Locator
- NavSource Mine Warfare Vessel Photo Archive, AMc-143/YP-381 page (also reachable via the YP index)
- Finding type
- vessel_history
- Finding
- Per-hull record for AMc-143 / YP-381: built 1940 at San Francisco, CA as the fishing boat St. James for James A. Davi of Monterey, CA; acquired by the Navy 10 December 1941 and designated coastal minesweeper AMc-143; reclassified district patrol craft YP-381 in May 1942 and placed in service in the 12th Naval District (Mare Island, CA); transferred to the Coast Guard 15 July 1943; returned to Navy custody 25 August 1945; transferred to the War Shipping Administration December 1945; struck from the Naval Register 20 March 1946; acquired in 1947 by John J. Ruzich of San Pedro, CA and renamed St. James; burned 11 December 1949 about 4 miles southwest of Port Fermin, CA. Specifications: 72 tons, 87'9" length, 24'3" beam, 12 knots, one 550 shp diesel engine, one shaft; call sign Nan-Yoke-Uncle-Yoke. NavSource notes no DANFS history exists for the craft and holds no image.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1940-1949
- Population
- Navy and Coast Guard crews of a 72-ton district patrol craft (1941-1945)
- Limitations
- Secondary compilation (the standard per-hull reference for small Navy craft), not a primary document - consistent with shipbuildinghistory table data. Does not name the building yard, the conversion yard, complement, or wartime stations; contains no materials or asbestos information. CG-service operational detail not given. 'Port Fermin' spelling per source (= Point Fermin, San Pedro).
- Atlas source
- true
- Evidence ID
- ev-uss-amc-143-amc143-01
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[2]shipbuildinghistory.com (Colton), 'Patrol and Training Craft (YP)' table, row YP 381; corroborated by 'Coastal Minesweepers (AMc) Built or Acquired through WWII' table note 'AMc 143-148 - Redesignated YP 381-386' [other_primary]
- Locator
- shipbuildinghistory.com/smallships/yp.htm (YP 381 row); shipbuildinghistory.com/smallships/minesweepers2.htm (AMc 143-148 group note; program intro counts)
- Finding type
- vessel_history
- Finding
- Independent per-hull table row: YP-381 - built San Francisco CA, 88 ft, 72 tons, 1940, ex-St. James, acquired 1941 as AMc 143, designated YP 1942, to MARAD 1945. Program context from the same tables: the Navy converted 45 acquired fishing vessels into coastal minesweepers (AMc) during WWII and the YP fleet grew to about 650 craft, mostly acquired yachts and fishing vessels - the acquisition-conversion pattern this hull fits. AMc hulls 143-148 were redesignated YP-381 through YP-386 as a block.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1940-1945
- Population
- Navy/Coast Guard crews of converted fishing-vessel patrol craft (program context)
- Limitations
- Shipyard-history compilation, secondary but corroborating NavSource independently (88 ft vs 87'9" rounding); does not name the building yard and gives no wartime station detail, no crew figures, no asbestos information. Program-level counts are context, not hull evidence.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-143-amc143-02
-
[3]U.S. National Archives Catalog - 57 record descriptions index 'YP-381' as an associated vessel, incl. WWII War Diaries microfilm file units scanned via the Fold3-NARA partnership: COM 12 (Commandant, 12th Naval District) war diaries May-June 1942, September 1942, November 1942, December 1942; COMWESTSEAFRON (Western Sea Frontier) war diaries spanning Oct 1942 - Jul 1945; COMBLIMPRON 32 war diary Feb 1945; plus sister-craft logbooks (Merit AMC-90, Observer AMC-91, Grosbeak AMC-19), 'Special Lists 43-44', and station records (Receiving Station, Naval Station Long Beach Dec 1945; Naval Hospital, Treasure Island Jan-Aug 1945) [other_primary]
- Locator
- catalog.archives.gov search "YP-381" (57 hits): ids 133934098 (COM 12 May-Jun 1942), 133987626, 134031005, 134054177, 77616327 (COM 12); 134002631, 134172198, 134300909, 633378369, 135893880, 135982780, 136012381, 136046263, 78325261, 78387375, 134126142, 78450254, 78467511, 78506557, 78535484, 78582073, 78587632, 78660851, 633397840, 633409896, 78712428, 139739044, 139801813, 139850542, 139914266, 140058991, 101719769, 101772257, 77519043, 83574572 (WESTSEAFRON); 139893966 (COMBLIMPRON 32); 285141687, 285152763-285153044, 285155118-285155354 (AMc sister logbooks); 178406296; 184664558; 191265857; 135981503; 134273326; 16618970
- Finding type
- historical_record
- Finding
- NARA catalog indexes YP-381 in wartime command and station records covering her entire service period: the 12th Naval District war diaries for May-June 1942 (her reclassification month and district assignment), additional COM 12 diaries for Sep/Nov/Dec 1942, and Western Sea Frontier war diaries from Oct 1942 through Jul 1945 - the period spanning her Coast Guard-manned district patrol service (CG custody Jul 1943 - Aug 1945) under West Sea Fron operational control. Digitized page images exist for the war-diary file units (Fold3 scans, e.g., catalog.archives.gov/id/133934098 for COM 12 May-June 1942).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-22
- Study period
- 1942-1945 records
- Population
- Crew serving aboard YP-381 within 12th Naval District / Western Sea Frontier patrol organization
- Limitations
- Catalog-level indexing (ship-name access points on record descriptions), not page-level verification - the specific diary entries mentioning YP-381 have not been read. Establishes that the wartime record set for this craft exists and is digitized; establishes nothing about materials, outfitting, or asbestos. No dedicated 'YP-381' logbook file unit surfaced in the digitized catalog (see search_ledger).
- Atlas source
- true
- Evidence ID
- ev-uss-amc-143-amc143-03
-
[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); propulsion data per NavSource/shipbuildinghistory (this record, ev-01/ev-02) [other_primary]
- Locator
- AJIM 11(3):359-373 (era context); NavSource specs block (diesel plant)
- Finding type
- asbestos_application
- Finding
- Era/type inference only, and materially weaker than for steam-powered hulls: this 72-ton craft ran a single 550 shp diesel engine - no boilers, no steam plant - so the boiler/fireroom insulation and steam-line lagging applications that dominate asbestos findings on WWII steam vessels are largely absent by design. Residual era-consistent candidates on a small diesel patrol craft: engine exhaust lagging, machinery gaskets and packing, electrical insulation, winch/windlass brake linings, and accommodation joiner insulation. Corn & Starr document that U.S. wartime naval shipbuilding and conversion work of 1941-45 used asbestos extensively as fireproofing and insulating material; any insulation installed or disturbed during her Navy conversion and district service would be of that era.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-22
- Study period
- 1940-1945
- Population
- 1941-42 conversion workers; Navy/CG engine-room and deck crew (hypothetical pathway, unverified)
- Limitations
- Inference from propulsion type and era - NOT a hull record. No survey, specification, outfitting schedule, or material record for this craft was located; establishes no asbestos content, quantity, location, individual exposure, or causation. A wooden-type fishing hull with a small diesel plant may have carried very little asbestos-containing material - the inference is bounded downward by plant type, not upward.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-143-amc143-04
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[5]Batch-1489 search ledger (this record): NavSource 11/03143; shipbuildinghistory YP/AMc tables; NARA catalog (57 indexed records, incl. digitized war diaries); MARAD ShipHistory (no record for this hull); NHHC/DANFS (no entry exists); CourtListener API v4 (throttled); indexed-web litigation checks; USCG patrol-craft tables; VA BVA index [other_primary]
- Locator
- search_ledger rows sl-uss-amc-143-amc143-01 through sl-uss-amc-143-amc143-11
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, court finding, or docketed asbestos case naming AMc-143, YP-381, or the fishing vessel St. James was found in the public sources searched (see search_ledger). No DANFS entry exists for the craft. MARAD's Vessel History Database carries no record for this hull (only a name collision: ST. JAMES, Official No. 240865, a 1941 Alabama Dry Dock tanker). Indexed-web litigation checks surfaced only name collisions; the checked law-firm ship lists do not carry a dedicated page for this hull (mesotheliomahope.com's minesweeper list names AM-series steel hulls only).
- 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 - her 1941-42 Navy conversion and wartime service are undocumented at the material level, and the hull is gone (burned 1949). Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility. CourtListener API sweeps were blocked on 2026-09-22 (HTTP 429, authenticated 2,800/day quota exhausted by other work on this machine; retry-after ~2.5h) - negative litigation coverage rests on indexed-web checking, not a systematic API sweep.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-143-amc143-05
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[6]DANFS, 'Arcade (AM-143)' entry (hazegray/losthistory transcription) - a different vessel: Admirable-class steel minesweeper, Tampa-built 1942-43, transferred to USSR as T-116; plus MARAD ShipHistory Detail 4636 'ST. JAMES' (Official No. 240865, 1941 Alabama Dry Dock tanker ex-William C. McTarnahan); shipbuildinghistory WPC/WYP table row 'WYP 381' (Globe IX, a 1937 Norwegian 600-ton vessel); NRC Canada publication 'Electrical resistance measurements of riveted joints in aluminium plates as used in the class AMc 143 minesweeper' [other_primary]
- Locator
- hazegray DANFS am143.htm (Arcade); vesselhistory.marad.dot.gov/ShipHistory/Detail/4636; shipbuildinghistory.com/smallships/wpc2.htm (WYP 381 row); nrc-publications.canada.ca object id 898bb64a-a859-4dbb-931b-c4cdc779df1e
- Finding type
- historical_record
- Finding
- Disambiguation record: four distinct same-name/same-number collisions must not be merged into this hull's record. (1) USS AM-143 (Arcade, ex-AMc-120) - the DANFS 'am143' entry - is an Admirable-class steel minesweeper sent to the USSR, not this coastal AMc. (2) MARAD's 'ST. JAMES' (ON 240865) is a 1941 Alabama Dry Dock tanker, not the 72-ton Monterey fishing boat. (3) Coast Guard WYP-381 was the Norwegian-built Globe IX, unrelated to Navy YP-381. (4) the NRC (Canada) technical paper on aluminum riveted joints 'as used in the class AMc 143 minesweeper' concerns an aluminum-hulled minesweeper design - this hull was a converted wooden-type fishing vessel; the paper is not about her.
- Verification
- verified
- Role
- correction
- Documentation level
- context_only
- Accessed
- 2026-09-22
- Study period
- n/a (identity screening)
- Limitations
- Collision-screening record only - prevents misattribution; asserts nothing about this hull's materials. The NRC document's 'class AMc 143' usage is a separate designation context (Canadian/aluminum minesweeper study), not the U.S. Navy AMc-143 hull number.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-143-amc143-06
-
[7]NARA Guide to Federal Records: RG 24 (Bureau of Naval Personnel - deck logs), RG 38 (Chief of Naval Operations - WWII War Diaries, digitized via Fold3), RG 26 (Records of the U.S. Coast Guard); USCG Historian's Office vessel files; Merchant Vessels of the United States registry [other_primary]
- Locator
- archives.gov record-group guides (RG 24, 26, 38, 178); catalog.archives.gov Fold3-scanned war-diary file units listed in ev-03
- Finding type
- historical_record
- Finding
- Archival leads (not retrieved - page-level review or reproduction order required; no spend authorized): (1) WWII deck logs for YP-381 (RG 24) - not surfaced as a dedicated digitized item in the catalog, may exist undigitized or under alternate titling; (2) page-level review of the already-digitized COM 12 (May-Dec 1942) and COMWESTSEAFRON (Oct 1942-Jul 1945) war-diary file units indexed under YP-381 - the most accessible ship-specific operational source; (3) USCG records of Coast Guard-manned Navy craft (RG 26; CG Historian's Office) for her Jul 1943-Aug 1945 CG period - station, manning, and any outfitting detail; (4) Merchant Vessels of the United States / Coast Guard documentation files for the fishing vessel St. James (official number, builder, hull material - all unlocated); (5) WSA/USMC disposal records (RG 178) covering the Dec 1945 transfer and 1947 sale to Ruzich; (6) 12th Naval District shipyard/repair facility records for the 1941-42 conversion scope.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-22
- Study period
- 1941-1949 records
- Limitations
- Record-group and file-unit mapping only - existence of asbestos-relevant documents for this craft is unknown until surveyed; nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-amc-143-amc143-07