USS YMS-10

Evidence

13 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-13).

1. [1]research packet 1027-packet.md [other_primary]

   Finding type

   vessel_history

   Finding

   Identity packet verdict: VERIFIED (thin sourcing, disclosed)

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Limitations

   qualifier: VERIFIED (thin sourcing, disclosed)

   Evidence ID

   uss-yms-10-yms10-pkt-1027-packet-md

2. [2]NavSource Online, Mine Warfare Vessel Photo Archive, YMS-10 (live page verified 2026-10-04, HTTP 200) [other_primary]

   Locator

   Header chronology, specifications block, commanding-officer table, and photo caption (1 October 1942, Navy Yard Charleston, SC)

   Finding type

   vessel_history

   Finding

   NavSource's live timeline identifies the hull as laid down 7 March 1942 by Henry B. Nevins Inc., City Island, NY; launched 30 June 1942; completed 24 July 1942; decommissioned 2 June 1946 at Subic Bay, Philippines; struck from the Naval Register 19 June 1946; transferred to the State Department Foreign Liquidation Commission in December 1947; fate unknown. The page's specification block lists: displacement 270 t., length 136 ft, beam 24 ft 6 in, draft 8 ft, speed 15 kts, complement 32, one 3"/50 dual-purpose gun mount, two 20mm mounts, two depth-charge projectors, and two 880 bhp General Motors 8-268A diesel engines with Snow and Knobstedt single reduction gear on two shafts. Call sign Nan-Able-Peter-Zebra. The page's commanding-officer table lists LTJG Partee Wilson Crouch, Jr., USN (World War II). A photo caption dates her in dry dock at Navy Yard Charleston, SC on 1 October 1942 with SC-637, YMS-9, and YMS-49.

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1941-1947

   Population

   Henry B. Nevins Inc. construction trades (1942); U.S. Navy YMS-10 crew (1942-46); Navy Yard Charleston drydock/yard workers (October 1942); Foreign Liquidation Commission custody (1947)

   Limitations

   NavSource is a live secondary photo-archive compilation, not an official registry. It supports the stated timeline, specifications, and photo caption only; it records 'Completed 24 July 1942' rather than an explicit commissioning event (uboat.net lists 'Commissioned 24 Jul 1942' for the same date), and contains no asbestos, survey, abatement, product, or exposure evidence.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-01

3. [3]uboat.net Allied Warships, USS YMS-10 (YMS-10) entry incl. commands table and notable-events narratives (live page verified 2026-10-04, HTTP 200) [other_primary]

   Locator

   Ship data table; Commands table; 'Notable events involving YMS-10' - 22 Apr 1944 and 1 Jul 1945 sections

   Finding type

   vessel_history

   Finding

   The uboat.net Allied Warships entry documents: ordered 1 April 1941; built by Henry B. Nevins Inc., City Island; laid down 7 March 1942; launched 30 June 1942; commissioned 24 July 1942; end of service 2 June 1946; decommissioned 2 June 1946; stricken 19 June 1946. Its wartime commanding-officer list gives: LTJG Partee Wilson Crouch, Jr., USN (24 Jul 1942 - mid 1943); LTJG Howard H. Goodman, USNR (mid 1943 - mid 1944); F.C. Shaw, USNR (mid 1944 - mid 1945); LTJG Richard D. Waterman, USNR (mid 1945 - mid/late 1945). Its 'notable events' place YMS-10 in two amphibious operations: (a) Operations Reckless and Persecution, the 22 April 1944 Hollandia/Aitape landings in New Guinea, where she sailed in Task Group 77.1 (Western Attack Group) as one of two motor minesweepers (with YMS-8) under LTJG H.H. Goodman, and on 24 April departed Humboldt Bay for Cape Cretin with Echelon R-3; (b) Operation Oboe II, the Balikpapan landings ('Fox' day 1 July 1945), where she was in Task Unit 72.2.92 under LTCDR D.W. Blakeslee with nine other YMS units, underway from Morotai with 'A' echelon on 11 June 1945, and where at 1230I/19 she reported being fired upon - USS Stevens was ordered to support her and silenced the enemy gun.

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1941-1946

   Population

   U.S. Navy YMS-10 crew; Task Group 77.1 and Task Unit 72.2.92 embarked and supporting forces

   Limitations

   uboat.net is a secondary data compilation (built largely from wartime operational documents) and flags its commands section as incomplete. Its two-event list is not a complete service record - the official Awards Manual campaign credits (ev-04) document additional operations. The 19 June 'fired upon' event and the 22 June shell hit reported in crew memoirs (ev-05, ev-06) may be one incident or two; the sources differ. The minesweeping unit designation also differs between sources - uboat.net prints 'TU 72.2.92' while the official Awards Manual cites the same Balikpapan force as 'Task Unit 78.2.9'. Contains no asbestos or exposure evidence.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-02

4. [4]Department of the Navy, Navy and Marine Corps Awards Manual NAVPERS 15,790 (Rev. 1953), Part II, Section 1, Presidential Unit Citation - Task Unit 78.2.9 entry (HyperWar mirror of the official publication, live 2026-10-04) [other_primary]

   Locator

   Part II, Section 1 (Presidential Unit Citation), 'Task Unit 78.2.9' unit list and '15 Jun-1 Jul 45 - Balikpapan, Borneo, Netherlands East Indies' period line

   Finding type

   historical_record

   Finding

   The official Navy and Marine Corps Awards Manual (NAVPERS 15,790, Rev. 1953), Part II 'Unit Awards', Section 1 'Presidential Unit Citation', lists Task Unit 78.2.9 - comprising USS Sentry (AM-299), USS Scout (AM-296), USS Scuffle (AM-298, printed 'Scuffie' in the manual), and twenty-one motor minesweepers including USS YMS-10 - for 15 June - 1 July 1945, Balikpapan, Borneo, Netherlands East Indies. YMS-10 is a named unit in the Presidential Unit Citation list for the Balikpapan minesweeping force.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1945-06-15 to 1945-07-01

   Population

   YMS-10 crew members attached during 15 June - 1 July 1945 (unit-award coverage)

   Limitations

   An official Department of the Navy publication (viewed via the HyperWar transcription mirror) naming the hull in a unit award roster. It establishes the PUC-covered period and unit membership only - it does not describe YMS-10's individual actions, does not establish the number of personnel decorated, and contains no asbestos, material, or exposure information.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-03

5. [5]Department of the Navy, Navy and Marine Corps Awards Manual NAVPERS 15,790 (Rev. 1953), Part IV, Asiatic-Pacific Area operation-code table and 'YMS 10' engagement-star ship-list entry (HyperWar mirror of the official publication, live 2026-10-04) [other_primary]

   Locator

   Part IV ship-list row 'YMS 10:' (eight date/code pairs) and the Asiatic-Pacific Area operation-code definitions (P22-12, P28-6, P32-2, P37-3, P39-3, P39-5, P40) in the same document

   Finding type

   historical_record

   Finding

   The official Navy and Marine Corps Awards Manual (NAVPERS 15,790, Rev. 1953), Part IV 'Campaign and Service Medals', 'List of Ships and Units Eligible for Engagement Stars', records YMS-10's Asiatic-Pacific campaign participation credits as eight dated periods across seven operation codes: 25 Mar - 6 Apr 1944 under P22-12 (Admiralty Island landings); 21-27 Apr 1944 under P40 (Hollandia operation, Aitape-Humboldt Bay-Tanahmerah Bay); 16-22 Aug 1944 under P28-6 (Cape Sansapor operation); 4-10 Jan 1945 under P32-2 (Lingayen Gulf landing); 1-5 Mar 1945 and 1-3 Apr 1945 under P39-5 (supporting mine sweeping operations including San Bernardino Strait-Verde Island Passage, Casiguran Sound-Baler Bay, Coron Bay, Balavac Strait); 10-16 May 1945 under P39-3 (Mindanao Island landings); and 15 Jun - 9 Jul 1945 under P37-3 (Balikpapan operation). The manual's printed text shows '15 Jun 46-9 Jul 45' for the Balikpapan period - an obvious typographical error read as 1945 to match the P37-3 window (15 Jun - 20 Jul 45).

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1944-1945

   Population

   YMS-10 crew members during the credited operation periods (1944-45)

   Limitations

   An official Department of the Navy publication (viewed via the HyperWar transcription mirror) documenting credited combat participation periods. It establishes participation credit for medal purposes, not a narrative of the ship's actions; engagement-star counts are not asserted because period-to-star mapping differs by operation code. The printed '15 Jun 46' is a typographical error (the P37-3 operation window ends 20 Jul 1945). Contains no asbestos, material, or exposure information.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-04

6. [6]CDR Richard L. Bigelow, USNR (Ret.), 'The Sinking of USS YMS-365' (2017-2019), NavSource-hosted PDF (live verified 2026-10-04, HTTP 200) [other_primary]

   Locator

   Balikpapan pre-landing narrative paragraph (PDF p. ~5): 'YMS-10 took a hit from a shore battery which did not explode.'

   Finding type

   historical_record

   Finding

   A NavSource-hosted crew memoir on USS YMS-365's loss at Balikpapan states: 'The harbor at Balikpapan was heavily mined. In mid-June, YMS-50 hit a mine and was hit by 3" shells from the beach. No one was killed, but the '50 sank. YMS-335 was hit by a shell from a shore battery killing nine members of the '335's gun crew. YMS-10 took a hit from a shore battery which did not explode.'

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1945-06

   Population

   YMS-10 crew during the Balikpapan minesweeping operation (June 1945)

   Limitations

   A crew memoir/secondary account hosted on NavSource, not an official action report. It corroborates that YMS-10 was hit by Japanese shore-battery fire during the Balikpapan sweep but gives no date; the YMS-339 memoir dates the hit to the 22nd (of June) while uboat.net records a 'fired upon' report at 1230I/19 June. Casualty/damage detail beyond the dud hit is not stated. Contains no asbestos or exposure information.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-05

7. [7]'MEF YMS 339', chapter 7 'The Baseball Beaches of Borneo' (crew memoir PDF, Navy League West CT Council site, live verified 2026-10-04, HTTP 200) [other_primary]

   Locator

   Chapter 7, 22 June narrative paragraph: 'YMS 10 was hit resulting in a three foot diameter hole above the waterline.'

   Finding type

   historical_record

   Finding

   A Navy-League-hosted memoir chapter on USS YMS-339 at Balikpapan states for 22 June 1945: 'On the 22nd, 339 swept in "Phillies" again, the area proving to be the most dangerous. At 1705, they lost more gear in making a sharp turn to maneuver out of range of a shore battery that had opened fire. Three other YMS's did the same. YMS 10 was hit resulting in a three foot diameter hole above the waterline.'

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1945-06

   Population

   YMS-10 crew during the Balikpapan minesweeping operation (June 1945)

   Limitations

   A privately authored crew memoir hosted on a Navy League council site, not an official action report. It dates the shell hit to 22 June; uboat.net records YMS-10 reporting being fired upon on 19 June (possibly separate events), and the YMS-365 memoir gives no date. Extent of damage and any casualties beyond the stated hole are not described. Contains no asbestos or exposure information.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-06

8. [8]National Archives and Records Administration, Special List #44, by Ship Numbers (live PDF retrieved and text-extracted 2026-10-04, HTTP 200) [other_primary]

   Locator

   YMS section, two 'YMS-10' rows: 7/25/1942 - 6/30/1943 and 1/1/1944 - 6/30/1945

   Finding type

   historical_record

   Finding

   NARA's Special List #44, by Ship Numbers, indexes two deck-log coverage intervals for YMS-10: 25 July 1942 through 30 June 1943, and 1 January 1944 through 30 June 1945. The index establishes that deck logs for this hull exist in NARA custody for those spans; it does not establish commissioning, transfer, or individual service events, and no other name is listed for the hull.

   Verification

   verified

   Role

   archival_lead

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1942-1945 records

   Limitations

   An index of record existence and coverage spans only. The interval 1 July - 31 December 1943 is not indexed (whether logs for that span exist elsewhere or were never kept is unknown), and coverage ends 30 June 1945 while she remained in service to 2 June 1946. Logs are not digitized in the public catalog as of this pass; a box-level NARA request naming USS YMS-10 is the next source path. Establishes no asbestos, event, or exposure fact.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-07

9. [9]uswarships.jounin.jp YMS table; Naval Marine Archive Nevins yard table and NMA ship registry entry 84820; navpedia YMS table (all live-verified 2026-10-04) [other_primary]

   Locator

   jounin.jp YMS table row YMS-10; navalmarinearchive.com/sbh/shipyards/yachtsmall/nevins.html YMS 10 row; ships.navalmarinearchive.com/ships/84820 registry entry; navypedia.org YMS10 row

   Finding type

   vessel_history

   Finding

   Independent secondary compilations corroborate the milestone chain. uswarships.jounin.jp's YMS table lists YMS-10 built by Henry B. Nevins Inc., laid down 1942/3/7, launched 1942/6/30, completed 1942/7/24, drydocked at Charleston Navy Yard in autumn 1942, decommissioned 1946/6/2, struck 1946/6/19. The Naval Marine Archive's Henry B. Nevins yard table lists 'YMS 10, U. S. Navy, Minesweeper, 136, 24-Jul-42, Struck 1946', and its ship-registry entry for 'YMS 10' gives registered date 1942-07-24, length 136, struck 1946. navpedia's YMS table gives YMS10 at Henry B. Nevins, New York: 3.1942 laid down, 30.6.1942 launched, 7.1942 completed, stricken 6.1946.

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1942-1947

   Limitations

   Three secondary compilations used for cross-confirmation of dates only - all derive from the same underlying Navy records and none is the issuing agency. They contain no asbestos, material, or exposure content. None documents the post-1947 fate beyond 'struck 1946' / 'sold' framing.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-10-yms10-08

10. [10]NavSource Online, Auxiliary Motor Minesweeper (YMS) index class description (live page verified 2026-10-04, HTTP 200) [other_primary]

    Locator

    YMS index class-description paragraphs (design, counts, stack variants, 1942 defensive-sweeping note, 1947 AMS reclassification)

    Finding type

    vessel_history

    Finding

    NavSource's YMS index supplies class context: the YMS-1 class was a wooden-hulled design by Henry B. Nevins Inc. (keel of YMS-1 laid at City Island 4 March 1941); 561 of the type were built at 35 yacht yards (481 for the U.S. Navy and 80 ordered for transfer to Britain under Lend-Lease as BYMS); YMS-1 through YMS-134 (which includes this hull) carried two stacks; surviving YMSs were reclassified as named AMS units in 1947; and Navy records show YMS units swept mines laid by enemy submarines as early as 1942 off the ports of Jacksonville, FL and Charleston, SC - the navy yard where this hull was photographed in dry dock on 1 October 1942.

    Verification

    verified

    Role

    context

    Documentation level

    class_or_era

    Accessed

    2026-10-04

    Study period

    1941-1947

    Limitations

    Class-level context from a secondary compilation. It establishes the type's wooden hull, Nevins design origin, build program, and the era pattern of early defensive sweeping - it does NOT establish that this hull swept off Charleston or performed any specific 1942-43 duty; her operations in that window are documented only by the deck-log index and her 1944-onward campaign credits. Contains no asbestos, equipment, or exposure information.

    Atlas source

    true

    Evidence ID

    ev-uss-yms-10-yms10-09

11. [11]U.S. Government Accountability Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (1979) [gao]

    Locator

    GAO product record HRD-80-2; direct product and PDF requests returned HTTP 403 during this pass

    Finding type

    gov_survey

    Finding

    GAO's 1979 report Navy Efforts To Protect Workers From Asbestos Exposure is Navy-wide historical context for asbestos use and worker-protection efforts; it is retained only as class/era context for a Navy vessel constructed in 1942.

    Verification

    partial

    Role

    context

    Documentation level

    class_or_era

    Accessed

    2026-10-04

    Study period

    1979 report; vessel construction 1942

    Population

    Navy asbestos program and workers (program-level context)

    Limitations

    The report was not retrievable live because GAO returned HTTP 403 (confirmed 2026-10-04), so no detailed report proposition is attributed here. Navy-wide context cannot establish asbestos installation, product identity, quantity, condition, exposure, or causation aboard this hull.

    Atlas source

    true

    Evidence ID

    ev-uss-yms-10-yms10-10

12. [12]Research result for this batch; see search ledger and access gaps [other_primary]

    Locator

    Searches documented in search_ledger

    Finding type

    asbestos_application

    Finding

    No ship-specific asbestos survey, abatement record, hazmat disclosure, or product-identification record was located in the sources reviewed for this batch. Ship-specific asbestos documentation is unknown.

    Verification

    partial

    Role

    negative_finding

    Documentation level

    ship_specific

    Accessed

    2026-10-04

    Study period

    2026-10-04

    Limitations

    A bounded search result, not proof that records do not exist. NARA notes that many Navy records are not digitized; the NavSource, uboat.net, jounin, Naval Marine Archive, navpedia, awards-manual, and memoir sources reviewed contain no asbestos information. No class-era inference is used to claim asbestos aboard this hull.

    Atlas source

    true

    Evidence ID

    ev-uss-yms-10-yms10-11

13. [13]CourtListener authenticated API v4 helper sweep, 2026-10-04; secondary web sweep same date [other_primary]

    Locator

    search_ledger rows sl-uss-yms-10-yms10-13 through sl-uss-yms-10-yms10-16

    Finding type

    historical_record

    Finding

    No qualifying ship-specific asbestos litigation result was located in this pass. All four mandatory authenticated CourtListener base searches ("USS YMS-10" opinion, "USS YMS-10" docket, "YMS-10" opinion, "YMS-10" docket; limit 20) were declined by the authenticated helper's fleet-wide pacing gate across six spaced attempts before results returned; those are access gaps, not zero-result findings. A separate secondary-web sweep for asbestos litigation naming this hull surfaced no qualifying case.

    Verification

    partial

    Role

    negative_finding

    Documentation level

    ship_specific

    Accessed

    2026-10-04

    Study period

    2026-10-04

    Limitations

    None of the four required base queries returned results to classify because the shared fleet pacing gate stood down every attempt - this is an incomplete negative finding, not proof that no litigation exists. No asbestos-qualified variant reached the API (one variant invocation was declined by the pacing gate before sending; no completed base query returned a 20-result overflow, and a zero base result would imply a zero variant).

    Atlas source

    true

    Evidence ID

    ev-uss-yms-10-yms10-12