Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 1053-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-330-yms330-pkt-1053-packet-md
-
[2]National Archives, Special List #44 - List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947, ship-number ordering [other_primary]
- Locator
- Special List #44 ship-number PDF, p. 118 (YMS-330: 8/6/1943 - 6/30/1945); digitization status per https://www.archives.gov/research/military/logbooks/navy-online
- Finding type
- historical_record
- Finding
- NARA Special List 44 inventories deck logs held for YMS-330 covering 8/6/1943 - 6/30/1945 (RG 24, National Archives at College Park). The coverage window opens on her completion/commissioning date (6 August 1943); the 6/30/1945 end date is a collection artifact - roughly twenty other YMS hulls in the same inventory share the identical end date while documented as in service into 1946. YMS-330 does not appear on NARA's list of digitized deck logs in the National Archives Catalog (the digitized YMS entries are the hulls later named under the AMS/MSCO program); the logs are an undigitized primary record of her commissioned career.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1945
- Population
- Crew and officers keeping the logs (1943-1945)
- Limitations
- Inventory listing only - establishes that deck logs exist and their date coverage, not their content. Log coverage is not proof of commissioning/decommissioning dates. The deck logs themselves are undigitized (not on the NARA online list); no page-level content reviewed this session.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-01
-
[3]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-330 - construction/milestone timeline, specifications, Korean disposal, commanding-officer and photo captions [other_primary]
- Locator
- NavSource 11/19330.htm header block, timeline, specifications block, commanding-officer table, launch and Korean-service photo captions
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: 'Laid down 8 December 1942 by the Ballard Marine Railway Co., Inc., Seattle, WA; Launched 27 March 1943; Completed 6 August 1943; Commissioned USS YMS-330; Transferred to the State Department, Foreign Liquidation Commission in April 1947; sold to South Korea and named Ganggyeong (YMS 510); Struck from the Naval Register 19 June 1946; Fate unknown.' Header notes the hull 'served the Navies of the United States and South Korea.' Call sign Nan-Queen-Dog-Yoke. Specifications: displacement 270 t.; length 136'; beam 24'6"; draft 8'; speed 13 kts.; complement 50; armament one 3"/50 dual purpose mount (replaced by one 40mm mount) and two 20mm mounts; propulsion two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Commanding-officer table lists LT J. B. Thompson, Jr., USNR (1945). A 27 March 1943 launch photo caption records the yard sending YMS-330 down the ways with YMS-328 at the outfitting wharf; a later photograph shows the hull moored between Curlew (AMS 8) and Ganggye (YMS-506), ex-USS YMS-392, in Korean service. Page states: 'There is no DANFS History currently available for YMS-330.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Construction trades at Ballard Marine Railway (1942-43); crew (1943-1946); CO LT J. B. Thompson, Jr., USNR (1945); ROK Navy crew (post-1947/48)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track NVR-style data but the struck date (19 Jun 1946) precedes the listed FLC transfer (April 1947) and conflicts with the yard tables' 'to Korea 1948' year (see gaps). Complement 50 conflicts with class figures 33 (class index) and 32 (Wikipedia class data) (see gaps). Contains no asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-02
-
[4]uboat.net Allied Warships of WWII, USS YMS-330 (YMS-330) - build/milestone data block for this hull [other_primary]
- Locator
- uboat.net ship/9750 data block
- Finding type
- vessel_history
- Finding
- uboat.net data block: built by Ballard Marine Railway Co. (Seattle, Washington, U.S.A.); ordered 13 April 1942; laid down 8 December 1942; launched 27 March 1943; commissioned 6 August 1943; stricken 19 June 1946. No commands or operations events are listed for this hull (the page carries none).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1946
- Limitations
- uboat.net is a specialist secondary database compiling official records - the milestone block is consistent with NavSource but this record relies on the compilation, not underlying document images. The absence of listed operations entries is not proof the hull saw no operations - it means none were transcribed on this source. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-03
-
[5]NHHC / Navy Department Library, 'United States Pacific Fleet Organization, 1 May 1945' (transcription of the official organization document) - Minecraft, Pacific Fleet roster [other_primary]
- Locator
- NHHC transcription, MINECRAFT PACIFIC FLEET section, YMS roster p. 135 of the document
- Finding type
- historical_record
- Finding
- The official Pacific Fleet organization document of 1 May 1945 lists YMS-330 under MINECRAFT, PACIFIC FLEET (ComMinecraftPac R. Adm. A. Sharp), in the YMS roster with 'Lt. J. B. Thompson, Jr. (USNR)' as commanding officer - matching NavSource's 1945 CO entry. The row carries the document's location key '96'; the transcription does not reproduce the location-key legend, so the coded duty station is undecoded here.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-05-01
- Population
- Crew under Lt. J. B. Thompson, Jr., USNR (May 1945)
- Limitations
- Fleet-level roster document - confirms Minecraft/Pacific Fleet assignment and the commanding officer as of 1 May 1945, but does not describe operations, condition, or materiel. Location key '96' is not decoded in the NHHC transcription (legend not reproduced) - assignment-to-place inference left open in gaps. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-04
-
[6]Shipbuilding History (Tim Colton), 'Ballard Marine Railway, Seattle WA' yard vessel list - builder's production record [other_primary]
- Locator
- shipbuildinghistory.com Ballard Marine Railway table, YMS 330 row (mirrored identically at navalmarinearchive.com/sbh/smallships/ym.html)
- Finding type
- vessel_history
- Finding
- The builder's production table lists YMS-330 as a US Navy minesweeper, 278 tons deadweight, 136 feet, delivered 6-Aug-43, disposition 'To Korea 1948 as Kang Kyong, scrapped 1963.' Ballard Marine Railway was a significant small shipyard from the 19th century through WWII, taken over in 1946 by Pacific Fishermen. The same yard built sisters BYMS-25 through -28 and YMS-326 through -333 (plus PCS-1457/-1458 and YP-635/-636); notable sisters: YMS-327 (reclassified Ruff AMS-54, the last YMS type in U.S. service, struck Nov 1969), YMS-328 (sold 1946, later John Wayne's yacht Wild Goose), YMS-332 (to the USSR 1945 as T-607 per navalmarinearchive / T-611 per the yard table).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1963
- Population
- Ballard Marine Railway construction trades (1942-43)
- Limitations
- Independent secondary yard register (compiled from yard and government records). The 'To Korea 1948' year conflicts with NavSource's April 1947 FLC transfer, and 'scrapped 1963' conflicts with NavSource's 'Fate unknown' - both variants carried in gaps; name spelling also differs (Kang Kyong vs Ganggyeong). No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-05
-
[7]Navy Occupation Service Medal / China Service Medal (extended) ship-eligibility table, stated source: Navy and Marine Corps Awards Manual (NAVPERS 15,790, 1953) - 'ships and units credited by the Secretary of the Navy' [other_primary]
- Locator
- officialmilitaryribbons.com Navy Occupation/China Service (extended) ship list, YMS entries - 'YMS 330 | 13 Oct 45 - 5 Mar 46 | A | 7-14 Mar 46'
- Finding type
- historical_record
- Finding
- The eligibility table credits YMS-330 with Navy Occupation Service (Asia clasp 'A') for the period 13 October 1945 - 5 March 1946 and China Service for 7-14 March 1946 - documenting that the hull remained on duty in Asian waters into early 1946, bridging the gap between the deck-log coverage cutoff (6/30/1945) and the strike date (19 June 1946).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-1946
- Population
- Crew on occupation/China duty (Oct 1945 - Mar 1946)
- Limitations
- Commercial secondary transcription of the NAVPERS 15,790 (1953) eligibility list - not verified against the primary document this session; verification_status partial. Eligibility windows document qualifying presence, not operations detail; the 'A' clasp denotes the Asia area. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-06
-
[8]NavSource Online: Auxiliary Motor Minesweeper (YMS) / British Motor Minesweeper (BYMS) Index - class description and class-level specifications [other_primary]
- Locator
- NavSource 11/19idx.htm class narrative and 'Auxiliary Motor Minesweepers (YMS-1 to YMS-481)' specification block
- Finding type
- vessel_history
- Finding
- Class context for this hull: 'The wood-hulled YMS proved to be one of the U.S. Navy's more durable and versatile types' - 561 yard minesweepers were built at 35 U.S. yacht yards (12 East Coast, 19 West Coast, 4 Great Lakes) beginning with YMS-1, laid down 4 March 1941 at Henry B. Nevins, Inc., City Island, NY. YMS-135 through -445, 480 and 481 (which includes this hull) carried one stack. Class-level specifications on the index: length overall 136', extreme beam 24'6", displacement 320 tons, max draft 6'1", complement 33, one 3"/50 dual-purpose mount and two 20mm mounts, designed speed 12 knots, General Motors 8-268A diesel engines on two shafts, designed shaft horsepower 880. Surviving YMS were reclassified as AMS and given bird names in 1947 - YMS-330, disposed to South Korea, never received one.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1941-1947
- Population
- Class-wide construction and crew populations (1941-1969)
- Limitations
- Class-level description only - names the type's shared characteristics, not anything specific to hull 330 beyond her place in the single-stack production group. Spec figures differ from the hull-page values (320t/33/12 kts here vs 270t/50/13 kts on the hull page; Wikipedia class data carries 270t/32/15 kts; see gaps). No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-07
-
[9]Era inference built on: NavSource class index (wood-hulled YMS type); NavSource/uboat.net hull data (two GM 8-268A diesels, reduction gear, two shafts - no steam plant); GAO HRD-80-2 Navy asbestos-era program documentation (ev-09) [other_primary]
- Locator
- NavSource 11/19idx.htm class description; NavSource 11/19330.htm propulsion spec; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- A wood-hulled, diesel-driven minesweeper delivered in August 1943 sits inside the Navy's documented asbestos-use era. Era-standard applications on a small wooden diesel combatant of this type and period were diesel-exhaust and muffler lagging, engine-room thermal/acoustic insulation, machinery gaskets and valve packing, and electrical insulation. As a diesel craft she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply - and her wood hull and small machinery spaces imply a substantially smaller insulation footprint than a steam combatant.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Ballard Marine Railway construction trades (1942-43); engine-room and maintenance crew (1943-1946); any yard/base trades during in-theater availabilities; Korean Navy crew post-transfer
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-330. Names era-standard applications, not confirmed installed materials. No quantity, no manufacturer attribution, no ship-proven presence. The small craft's reduced systems footprint makes the inference weaker than for steam-powered hulls of the same era.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-08
-
[10]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979; publicly released Oct 22, 1979) [gao]
- Locator
- GAO product page HRD-80-2, Highlights block
- Finding type
- gov_survey
- Finding
- GAO reviewed the Navy's efforts to protect workers from asbestos exposure at the Long Beach and Norfolk Naval Shipyards, including 'the use of asbestos in Navy ships, the cost of removing asbestos from Navy ships, and compensation programs for asbestos-related disabilities.' Per the product-page highlights, the Navy's 1975 policy was to remove and replace with nonasbestos materials only insulation that was damaged or had to be removed for repairs, modified in 1979 to selectively replace asbestos insulation in high-maintenance areas - program documentation spanning the era in which this hull was built (1942-43) and served (1943-1946).
- 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. Full 26-page report PDF not retrievable this session (gao.gov returns HTTP 403 to direct fetch, confirmed 2026-10-04 - same standing defect as Batches 01/98/8941); content via the product-page highlights, which loaded live via firecrawl.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-09
-
[11]Batch-8960 search ledger (this record): NARA Special List 44 and digitized-log list; NHHC DANFS (no entry exists) and Pacific Fleet organization doc; NavSource hull page and class index; uboat.net; shipbuildinghistory and navalmarinearchive yard tables; NAVPERS-derived medal-eligibility transcription; NVR; VA Board of Veterans' Appeals search; CourtListener; secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-330-01 through sl-uss-yms-330-14
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, VA/BVA decision, or docketed case naming YMS-330 was found in the public sources searched (see search_ledger). The only 'asbestos aboard' material for YMS-class hulls is law-firm marketing listicle content asserting asbestos without primary sourcing - excluded by source policy.
- 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 - it is consistent with both genuinely light insulation fit and simple non-digitization of small-craft records. CourtListener status recorded in the ledger (blocked this session - fleet pacing, not a negative result). Undigitized deck logs (RG 24) and Ballard yard records remain open leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-330-10