Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 1046-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-283-yms283-pkt-1046-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-283 (11/19283) - designation timeline, specifications, commanding officers, photo captions (verified live 2026-10-04) [other_primary]
- Locator
- NavSource 11/19283 header timeline, specifications block, commanding-officers table, photo captions
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: laid down 30 September 1942 by the San Diego Marine Construction Co., San Diego, CA; launched 30 December 1942; completed 21 September 1943, commissioned USS YMS-283 and assigned to the Pacific Fleet; decommissioned 4 June 1946; struck from the Naval Register 7 February 1947; transferred to the War Shipping Administration in November 1947; sold in 1963 to Louise M. Stanculescu of Seattle, WA for use as a fishing boat and named Yankee Trader; sold in 1968 to Sherman F. Miller of Portland, OR; stranded 27 December 1971 at San Pedro, CA; fate unknown. Specifications: displacement 270 t.; length 136'; beam 24'6"; draft 8'; speed 15 kts.; complement 32; armament one 3"/50 dual purpose gun mount, two 20mm mounts, two depth charge projectors; propulsion two General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Commanding officers: LT Kenwood R. Bojens, USNR (21 September 1943); LT J. W. Holmes, USNR (May 1945). Launch sponsor Miss Joan Willis (San Diego newspaper photos, with yard owner Captain Oakley J. Hall). Photo captions: Bojens visiting Capt. Herb Etchegaray aboard YMS-320 in Kwajalein lagoon, c. 1944 (Etchegaray collection); San Francisco Bay c. 1945 (NHHC photo NH 79693). NavSource states there is no DANFS history for YMS-283. The uboat.net warship record for this hull corroborates the milestones and adds 'ordered May 1942.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1971
- Population
- San Diego Marine Construction trades (1942-43); wartime crew, cpl. 32 (1943-46); fishing-vessel crew (1963-71)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track NVR/DANFS-type data but the 1971 stranding date conflicts with the builder-yard table's '1973' (see gaps), and no source is given for the post-Navy sales chain. Page contains no asbestos content. 'Fate unknown' after the 1971 stranding - whether the hull was salvaged, scrapped, or remains a wreck is undocumented.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-01
-
[3]NARA Special List 44, 'List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947' - ship-number ordering, YMS-283 entries (PDF page 117; verified live and downloaded 2026-10-04) [other_primary]
- Locator
- SL-44 ship-number PDF, page 117, YMS section; RG 24 Entry 118, NAID 581208
- Finding type
- historical_record
- Finding
- NARA inventories TWO logbook coverage periods for this hull: 'YMS-283 9/21/1943 6/30/1945' and 'YMS-283 10/1/1945 11/30/1945' (verbatim entries, PDF page 117, ship-number ordering). The first window begins on her documented commissioning date; the second window covers October-November 1945, matching her documented post-war Japanese minesweeping period (Nagoya, Fukuoka - see ev-05). The inventory leaves a documented gap for July-September 1945 and for December 1945 onward. Logbooks of this era are RG 24 (Records of the Bureau of Naval Personnel), Entry 118 (NAID 581208), held at the National Archives at College Park.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1945 (inventoried coverage); list compiled 1978
- Population
- wartime crew (1943-45 coverage windows)
- Limitations
- This is an inventory record, not the logs themselves: the logbooks are not digitized, and their contents (locations, availability periods, machinery notes) were not examined. Coverage dates are logbook custody dates, not assertions of commissioning/decommissioning; the July-September 1945 gap may reflect missing volumes rather than missing operations.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-02
-
[4]NHHC Online Reading Room, 'United States Pacific Fleet Organization, 1 May 1945' (fleet organization listing; rendered live via firecrawl 2026-10-04 - direct fetch from this network returned 404) [nhhc_danfs]
- Locator
- PacFlt 1 May 1945 organization, Mine Squadron TWENTY > Mine Division SIXTY > YMS roster
- Finding type
- vessel_history
- Finding
- The official U.S. Pacific Fleet organization for 1 May 1945 lists 'YMS 283, Lt. J. W. Holmes (USNR)' within Mine Squadron TWENTY (Commander Mine Squadron Twenty, Capt. R. A. Larkin), under Mine Division SIXTY (ComMinDiv 60, Comdr. M. D. Matthews). This places the hull in the Pacific Fleet mine force during the Okinawa campaign window documented in ev-05, and corroborates NavSource's commanding-officer entry of LT J. W. Holmes, USNR from May 1945.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-05-01
- Population
- wartime crew (May 1945); Lt. J. W. Holmes USNR
- Limitations
- Organizational listing only - establishes administrative assignment and the commanding officer as of 1 May 1945, not day-to-day operations or locations. No asbestos or material content. Page verified via firecrawl render service; direct curl from this network returned HTTP 404 (NHHC host filtering, not link rot - content served normally).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-03
-
[5]NHHC photographic collection, NH 79693 - 'USS YMS-283. Anchored in San Francisco Bay, in 1945-1946. Courtesy of D.M. McPherson, 1974' (rendered live via firecrawl 2026-10-04; direct fetch 404 as above) [nhhc_danfs]
- Locator
- NHHC NH series page NH-79693, title/caption/description fields
- Finding type
- historical_record
- Finding
- An official NHHC-held photograph documents this hull anchored in San Francisco Bay in 1945-1946 - consistent with her post-war return to the West Coast before decommissioning on 4 June 1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-1946
- Population
- crew (1945-46)
- Limitations
- A photograph caption, not a movement report: it establishes presence in San Francisco Bay in 1945-46, not the decommissioning location or yard. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-04
-
[6]WWII Asiatic-Pacific campaign participation listing for YMS-283 (secondary compilation reproducing official Navy campaign-credit tables), corroborated by the Operation Flintlock order of battle and NavSource photography [other_primary]
- Locator
- officialmilitaryribbons.com YMS-207-to-YMS-361 table, YMS-283 block; Operation Flintlock naval OOB, TG 52.10; NavSource 11/19283 photo captions
- Finding type
- vessel_history
- Finding
- Campaign-credit data for this hull: P26-2 Marshall Islands operation - Occupation of Kwajalein and Majuro Atolls, 31 Jan-8 Feb 1944; P34-1 Assault and occupation of Okinawa Gunto, 2 Apr-30 Jun 1945; P35 3d Fleet operations against Japan, 5-31 Jul 1945; and P207 post-war Minesweeping Operations Pacific - P207-3 Nagoya (Honshu) 23-25 Oct 1945, P207-18 Fukuoka (Kyushu-Korea) 5-28 Nov 1945, P207-9 Kobe (Honshu) 22 Dec 1945-2 Mar 1946. Corroboration: the Operation Flintlock naval order of battle lists YMS-283 among the motor minesweepers of TG 52.10 (Minesweeping and Hydrographic Group) at Kwajalein alongside YMS-262, YMS-263, and YMS-320, and NavSource photo captions place her commanding officer in Kwajalein lagoon c. 1944. The post-war Japanese-area sweep windows align with the second NARA logbook coverage period (Oct-Nov 1945).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-01-31 to 1946-03-02
- Population
- wartime crew (1944-46 operations)
- Limitations
- Accessed via a private compilation site that reproduces the Navy's official WWII campaign-participation tables - not independently verified against the primary NavPers/SECNAV awards list this session; partial verification only. Participation windows denote eligibility for campaign credit, not a continuous-deployment narrative. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-05
-
[7]DANFS, Brant II (YMS-113) - same-yard YMS-1-class sister, class specification block and typical employment pattern (rendered live via firecrawl 2026-10-04; direct fetch 404 as above) [nhhc_danfs]
- Locator
- DANFS Brant II entry, spec block and service narrative; class wooden-hull fact per class literature (Wooden boats of WWII, YMS-1 class overview)
- Finding type
- vessel_history
- Finding
- DANFS documents a same-yard sister built to the same design: YMS-113 (later Brant, AMS-43), laid down at San Diego by San Diego Marine Construction Co., spec block 'dp. 270; l. 136'0"; b. 24'6"; dr. 10'; s. 15 k.; cpl. 32; a. 1 40 mm.; cl. YMS-1' - matching YMS-283's dimensions and complement. Her documented employment pattern - inter-island mine clearance, escort duty, pilot-boat work, and antisubmarine patrol in the South Pacific, then Hawaiian duty and post-war reserve training - typifies YMS-1-class Pacific employment. The class is wooden-hulled: 481 136-foot wood-hull minesweepers were built for WWII because wood construction avoided triggering magnetically activated mines.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1959 (sister's coverage)
- Population
- YMS-1-class crews generally (class context)
- Limitations
- Sister-ship DANFS entry, not this hull - no statement in it names or describes YMS-283's operations. Class spec block armament (1 x 40mm) differs from NavSource's fit for YMS-283 (1 x 3"/50, 2 x 20mm, 2 DCP) - fits varied. Wooden-hull characterization is class literature (secondary); DANFS does not say 'wooden'. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-06
-
[8]Era inference built on: NavSource specifications (wooden-hulled YMS-1 class; 2 x GM 8-268A diesels, Snow & Knobstedt gear, 2 shafts); DANFS sister spec block (YMS-113); GAO HRD-80-2 era documentation (see ev-08) [other_primary]
- Locator
- NavSource specifications block; DANFS Brant II spec block; GAO HRD-80-2
- Finding type
- asbestos_application
- Finding
- A diesel-powered wooden-hulled minesweeper completed in September 1943 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a small diesel craft of this type were engine and diesel-exhaust lagging, machinery insulation, gaskets, valve packing, electrical insulation, and compartment finishes in the confined hull volume. As a wooden-hulled diesel craft she carried no steam plant and no boiler/turbine lagging - the thermal-insulation application that GAO identifies as the Navy's major asbestos use aboard ships was present at materially smaller scale here than aboard steam vessels.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1971
- Population
- San Diego Marine Construction trades (1942-43); crew (1943-46); fishing-conversion and vessel crew (1947-71)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-283. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-07
-
[9]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979; publicly released Oct 22, 1979) - product page and full-report text extracted via firecrawl 2026-10-04 [gao]
- Locator
- GAO HRD-80-2 product page highlights; report text pp. 'Navy's policy on use of asbestos' section
- Finding type
- gov_survey
- Finding
- GAO documented the Navy's shipboard asbestos era: thermal insulation 'was the Navy's major use of asbestos aboard ships'; insulation specifications were changed in 1973 to specify asbestos-free materials, yet 'ships were being delivered with asbestos insulation as late as May 1978'; asbestos appeared in components such as clutches and electric cables; and 'other Navy ships contain large quantities of asbestos.' The Navy's 1975 policy removed only damaged insulation, modified in 1979 to selective replacement in high-maintenance areas; a one-time removal program was rejected on an estimated $2 billion cost.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Fieldwork yards were Long Beach and Norfolk Naval Shipyards - not San Diego Marine Construction. The full-report PDF could not be fetched directly (gao.gov access-denied page to curl); content extracted via firecrawl render. Does not establish materials aboard this hull, individual exposure, or quantity.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-08
-
[10]Wenatchee World, obituary of Robert M. 'Bob' Hale Sr. (d. 2014-09-28) - crew member of USS YMS 283 in WWII [reputable_press]
- Locator
- Wenatchee World obituary text
- Finding type
- historical_record
- Finding
- A named enlisted crew member is documented aboard this hull: Robert M. Hale Sr. 'served in the Navy from March 1943, to late 1946, in WWII on the USS YMS 283 mine sweep' (obituary). This corroborates the wartime complement (32) as the aboard population during the 1943-46 service window.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1946
- Population
- Robert M. Hale Sr.; wartime enlisted crew
- Limitations
- An obituary is not a service record - it names the ship and his Navy service window (March 1943-late 1946); shipboard dates within that window are not stated (the hull did not commission until September 1943). Population documentation only - no exposure claim for this or any individual.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-09
-
[11]Batch-8909 search ledger (this record): NARA SL44 ship-number PDF (direct download); NavSource 11/19283; NHHC Pacific Fleet organization 1 May 1945; NHHC photo NH 79693; DANFS Brant II (sister); GAO HRD-80-2 product page + report text; CourtListener authenticated API v4; secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-283-01 through sl-uss-yms-283-10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific record located: no asbestos survey, abatement contract, hazmat disclosure, or litigation naming USS YMS-283 was found in the public sources searched (see search_ledger). CourtListener authenticated API v4 base queries returned: 'USS YMS-283' opinions 0, 'USS YMS-283' dockets 0, 'YMS-283' opinions 0, 'YMS-283' dockets 1 - the single docket hit is Hongda Chem USA, LLC v. Shangyu Sunfit Chemical Company, Ltd., M.D.N.C. 1:12-cv-01146 (filed 2012-10-26, terminated 2020-03-06), a diversity breach-of-contract matter matching party 'YMS Agriculture International Corp.' - a name collision, not vessel-related and not asbestos-related. Secondary web sweep surfaced no asbestos claim naming this hull; unusually, no law-firm marketing listicle names it either.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - a wooden-hulled diesel sweeper completed 1943 sits inside the Navy's documented asbestos era; the inference is era-consistent but not ship-proven. CourtListener coverage is limited to its indexed corpus - state-court and unindexed federal matters are outside it. Deck logs (RG 24 E-118), builder records, and any WSA/MARAD disposal file are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-283-10