USS YMS-30

Evidence

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

1. [1]research packet 1048-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-30-yms30-pkt-1048-packet-md

2. [2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-30 page (11/19030) - narrative timeline, specifications block, and transcribed DANFS entry text [other_primary]

   Locator

   NavSource 11/19030.htm header block, specifications block, DANFS text block

   Finding type

   vessel_history

   Finding

   NavSource's hull page identifies YMS-30 as a YMS-1-class auxiliary motor minesweeper: 'Laid down in 1941 by the Greenport Basin and Construction Co., Long Island, NY; Launched 12 March 1942' (with the note that there was no program or ceremony, the only christening a bucket of water thrown over her by a workman); 'Struck a mine off Anzio Beach, Italy and sank, 25 January 1944; Struck from the Naval Register 12 February 1944.' The same page carries a Dictionary of American Naval Fighting Ships entry block: 'Built at Greenport Basin and Construction Co., Long Island, NY. Keel laid 3 March 1942, Launched 9 May 1942, Completed 11 August 1942, Sunk by a mine 25 January 1944 at 41 deg 23' N., 12 deg 45' E. off Anzio, Italy.' The narrative block and the printed DANFS text conflict on the build milestones (see correction row ev-11). 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 880 bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. No image of YMS-30 is held by the archive.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1941-1944

   Population

   Greenport Basin construction workforce (1941-42); crew (1942-44)

   Limitations

   NavSource is a volunteer secondary compilation, not a primary registry; its narrative block's build dates conflict with the DANFS text printed on the same page (see ev-11). Contains no asbestos or materials content; establishes identity, milestones, and loss only.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-01

3. [3]Naval History and Heritage Command, 'Casualties: Navy and Coast Guard Ships' (ship-loss list), Motor Mine sweepers (YMS) section [nhhc_danfs]

   Locator

   NHHC casualties page, 'Motor Mine sweepers (YMS)' subsection

   Finding type

   vessel_history

   Finding

   NHHC's official ship-casualties list records for this hull: 'USS YMS-30 sunk by a mine off Anzio, Italy, 25 January 1944' - listed under 'Motor Mine sweepers (YMS)' alongside YMS-14, YMS-19, YMS-21, YMS-24, YMS-39, YMS-48, YMS-50, YMS-70, YMS-71, YMS-84, YMS-98, YMS-103, YMS-127 and others.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1944

   Population

   Crew aboard at loss (1944-01-25)

   Limitations

   Loss-list entry only: confirms date, agent (mine), and location but gives no casualty figures, no tactical circumstances, and no material or hazmat content. No asbestos information. The live page intermittently 404s to automated fetches; content verified against both a live retrieval and a 2025-12-08 Wayback capture.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-02

4. [4]Robert J. Cressman, The Official Chronology of the U.S. Navy in World War II (Contemporary History Branch, Naval Historical Center, 1999), entry for 25 January 1944 (verbatim transcription via HyperWar/ibiblio) [other_primary]

   Locator

   USN-Chron-1944.html, '25 January, Tue.' Mediterranean entry

   Finding type

   historical_record

   Finding

   The NHHC official chronology records for 25 January 1944 (Mediterranean): 'Off Anzio, motor minesweeper YMS-30 is sunk by mine, 41 deg 23'N, 12 deg 45'E; submarine chaser PC-676 is damaged by near-miss of bomb.' - placing the loss during the Anzio-Nettuno operation that had opened on 22 January 1944.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1944

   Population

   Crew aboard at loss (1944-01-25)

   Limitations

   One-line chronology entry: establishes date, cause, and position of loss, nothing more - no casualty figures, no unit assignment detail, no material content. Transcription of an official NHHC publication hosted on HyperWar (ibiblio), not the live NHHC page. No asbestos information.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-03

5. [5]uboat.net Allied Warships, USS YMS-30 (ship/9447) [other_primary]

   Locator

   uboat.net ship 9447 - fact table and history line

   Finding type

   vessel_history

   Finding

   uboat.net's Allied Warships entry for USS YMS-30 records: ordered 1 April 1941; laid down 3 March 1942; launched 9 May 1942; commissioned 11 August 1942; built by Greenport Basin and Construction Co., Greenport, Long Island, New York; lost 25 January 1944 at loss position 41 deg 23'N, 12 deg 45'E - 'Mined and sunk off Anzio, Italy.' The construction milestones agree exactly with the DANFS entry text printed on the NavSource page (ev-01); the 1 April 1941 order date plausibly explains the 'laid down in 1941' slip in NavSource's narrative block.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1941-1944

   Population

   Greenport Basin construction workforce; crew

   Limitations

   uboat.net is a maintained specialist database, not a primary Navy record; its milestone dates match DANFS text. It labels 11 August 1942 'Commissioned' where the DANFS text says 'Completed' - milestone conflation unresolved (see gaps). Contains no asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-04

6. [6]National Archives and Records Administration, Special List No. 44 - List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 (ship-number sequence), p. 118 [other_primary]

   Locator

   sl-44-ship-number.pdf, p. 118 (two YMS-30 rows, extracted via pdftotext); cross-checked against https://www.archives.gov/research/military/logbooks/navy-online

   Finding type

   historical_record

   Finding

   NARA Special List 44 (ship-number sequence) inventories TWO deck-log holdings for YMS-30 on the same page: '8/12/1942 to 10/31/1942' and '4/1/1943 to 12/31/1943' (PDF p. 118). The first window begins one day after the documented completion date (11 August 1942); the second ends 25 days before the ship sank on 25 January 1944. The batch brief cited only the first window; the inventory actually lists both. No holdings appear for 1 November 1942 through 31 March 1943 or for January 1944. YMS-30 does not appear in NARA's 'Navy Deck Logs Available in the National Archives Catalog' online list (that list carries only surviving, renamed ex-YMS hulls), so the paper logs are an undigitized in-person research lead.

   Verification

   verified

   Role

   archival_lead

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1942-1943 (holdings); 1978 publication

   Population

   Crew during log coverage windows (1942-08-12 to 1942-10-31; 1943-04-01 to 1943-12-31)

   Limitations

   Finding-aid entry only: documents that logs exist and their date spans, not their contents - deck-log coverage is a holdings statement, not commissioning/decommissioning dates. Whether a final-period logbook (January 1944, incl. the sinking) survived or was reconstructed is undocumented. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-05

7. [7]Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953), Part IV, Section 2(16), via HyperWar transcription [other_primary]

   Locator

   Ship-level engagement-star list, 'YMS 30' entry; E4/E4-1 definitions in Part III operation list

   Finding type

   vessel_history

   Finding

   The official ship-level engagement-star list in NAVPERS 15,790 credits 'YMS 30' with a single operation: '22 Jan 44 - 25 Jan 44' under code E4-1, 'Anzio-Nettuno advanced landings' (operation dates 22 Jan - 1 Mar 44 within the E4 'West Coast of Italy operations' group, 22 Jan - 17 Jun 44). YMS-30's credited participation ends on 25 January 1944 - the day she was sunk. Under the manual's one-star-per-operation rule for the E4 group this represents one engagement star, her only WWII award found.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1944-01-22 to 1944-01-25

   Population

   YMS-30 crew

   Limitations

   Documents campaign participation and one engagement star only; no asbestos or material content. The credit is E4-1 under the E4 group - counts as one engagement star under the manual's one-star-per-operation rule.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-06

8. [8]Bureau of Naval Personnel WWII casualty list, 'Killed and Died, 1944' - verbatim transcription at naval-history.net (WW2UScasaaDB-USNBPbyDate1944) [other_primary]

   Locator

   Entries dated 25 January 1944 naming 'USS YMS-30, Anzio - Nettuno landings' (17 entries)

   Finding type

   historical_record

   Finding

   The transcribed Bureau of Naval Personnel casualty list (naval-history.net transcription of the USNBP 'Killed and Died' 1944 list) records 17 officers and men against 'USS YMS-30' for 25 January 1944, all annotated 'Anzio - Nettuno landings': five recorded as killed in combat (CasCode 121 - SM1 George E. Corwin, QM3 James W. Garnett Jr., LTJG Adfur E. Maines, ENS Marion S. Richardson, SEA1 Joseph W. Strukel); one missing later declared dead (CasCode 6221 - ENS Paul O. Wood); and eleven under casualty code 6421 (EM2 Beecher E. Boyington Jr., MMR3 William C. Csont, LTJG Thomas E. Garner, GM3 William P. Garrett, MOMM2 William J. Gravell Jr., CMOMMA Louis J. Kapera, EM3 George E. Keach, COX Matthew Kormushoff, CPHMA Paul J. Minogue, SEA2 Thomas R. Spencer, GM1 Charles C. Vogel).

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-04

   Study period

   1944-01-25

   Population

   YMS-30 complement lost with the ship (17 of ~32)

   Limitations

   Transcription of the BUPERS casualty list hosted by naval-history.net, not the live primary record; names, rates, and casualty codes transcribed verbatim. The 6421 code meaning is not glossed on the page and is not interpreted here. Does not account for wounded survivors, and individual service records were not cross-checked. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-07

9. [9]NavSource Online: Auxiliary Motor Minesweeper (YMS) / British Motor Minesweeper (BYMS) index [other_primary]

   Locator

   Class-history narrative and class characteristics block

   Finding type

   vessel_history

   Finding

   Class context: NavSource describes the YMS type as a wooden-hulled 136-foot motor minesweeper designed by Henry B. Nevins, Inc., City Island, NY; 561 built at 35 yacht yards (12 East Coast, 19 West Coast, 4 Great Lakes); YMS-1 through YMS-134 - the group containing YMS-30 - carried two stacks. Class characteristics: 320 tons displacement, extreme beam 24' 6", max draft 6' 1", complement 33, designed speed 12 kts, one 3"/50 dual-purpose mount and two 20mm mounts, General Motors 8-268A diesel engines at 880 designed shaft horsepower on two shafts. Surviving YMS's were reclassified AMS in 1947; sunk 1944, YMS-30 never was.

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-10-04

   Study period

   1941-1969

   Population

   YMS-class crews and builders

   Limitations

   Class-level design context only; it does not establish materials, work history, or asbestos conditions aboard this specific hull. Class spec figures (320 t, 6'1" draft, complement 33, 12 kts) differ from the YMS-30 hull-page specs (270 t, 8', 32, 15 kts) - see gaps.

   Atlas source

   true

   Evidence ID

   ev-uss-yms-30-yms30-08

10. [10]Inference from NavSource YMS-30 hull specifications (ev-01) and the NavSource YMS-1 class index (ev-08); era framing per GAO HRD-80-2 (ev-10) [other_primary]

    Locator

    Inference from ev-01 and ev-08 design data

    Finding type

    asbestos_application

    Finding

    Class/era inference: this wooden-hulled, diesel-powered auxiliary motor minesweeper had no steam plant. A 1941-42 build sits inside the Navy's documented asbestos-use era, but her material profile is materially thinner than a steam vessel's: era-standard applications aboard a small diesel combatant of this type and period were exhaust and muffler lagging, gaskets, valve and machinery packing, electrical insulation, brake linings on winch and windlass machinery, deck coverings, and possible thermal/fire insulation adjacent to machinery spaces. The boiler/turbine lagging pathway does not apply.

    Verification

    inferred

    Role

    supporting

    Documentation level

    class_or_era

    Accessed

    2026-10-04

    Study period

    1941-1944

    Population

    Greenport Basin construction workers (1941-42); YMS-30 crew (1942-44)

    Limitations

    No hull specification sheet, builder work package, survey, maintenance record, or test result naming YMS-30 was located, and none is realistically expected for a hull sunk in action in 1944. Names era-standard applications for the type, not confirmed installed materials - does not establish that asbestos was installed aboard in any quantity, or that it was not.

    Atlas source

    true

    Evidence ID

    ev-uss-yms-30-yms30-09

11. [11]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]

    Locator

    GAO product page HRD-80-2 (full text blocked, HTTP 403)

    Finding type

    gov_survey

    Finding

    GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - spanning this hull's entire construction (1941-42) and US service era (1942-44).

    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 text not retrieved (gao.gov blocks automated fetch, HTTP 403, confirmed again 2026-10-04 - standing defect since Batch 01); content via product-page description.

    Atlas source

    true

    Evidence ID

    ev-uss-yms-30-yms30-10

12. [12]NavSource 11/19030 narrative block vs DANFS entry text on the same page vs uboat.net ship/9447; NARA SL44 p.118 start date (12 Aug 1942) as a consistency check [other_primary]

    Locator

    NavSource 11/19030.htm narrative vs DANFS blocks; uboat.net ship/9447 fact table; sl-44-ship-number.pdf p.118

    Finding type

    historical_record

    Finding

    CORRECTION: the NavSource narrative block says YMS-30 was 'Laid down in 1941' and 'Launched 12 March 1942,' but the DANFS entry text printed on the same NavSource page gives keel laid 3 March 1942, launched 9 May 1942, completed 11 August 1942 - and uboat.net independently agrees with the DANFS dates exactly (adding an order date of 1 April 1941). The '1941' laid-down slip most plausibly conflates the 1 April 1941 order date with the keel-laying milestone. The DANFS/uboat.net dates are adopted: they are mutually consistent and consistent with NARA deck-log coverage beginning 12 August 1942, one day after completion. The NavSource narrative dates are retained in the record only as the conflicting source.

    Verification

    partial

    Role

    correction

    Documentation level

    ship_specific

    Accessed

    2026-10-04

    Study period

    1941-1942

    Limitations

    Corrects a build-date conflict within a single source page, not a material claim. 'Laid down' vs 'ordered' vs 'keel laid,' and 'completed' vs 'commissioned,' may reflect distinct milestones that secondary sources conflate; no builder construction record was located to fully resolve the narrative block's dates. No asbestos content.

    Atlas source

    true

    Evidence ID

    ev-uss-yms-30-yms30-11

13. [13]Batch-8926 research ledger for USS YMS-30 [other_primary]

    Locator

    search_ledger rows sl-uss-yms-30-yms30-01 through sl-uss-yms-30-yms30-16

    Finding type

    historical_record

    Finding

    No qualifying ship-specific asbestos record was located: no asbestos survey, abatement contract, hazmat disclosure, maintenance record, DANFS asbestos statement, or public official source documenting asbestos aboard YMS-30 was found in the sources searched - and none is realistically extant for a hull sunk in action 25 January 1944 (no postwar overhaul, museum, reserve-fleet, or scrapping pipeline exists to have generated such records). CourtListener: all four base queries returned only name collisions - "USS YMS-30" opinion 9 hits (OCR-noise matches in unrelated Texas/NY criminal and civil opinions), "USS YMS-30" docket 2,492 hits, "YMS-30" opinion 322 hits, "YMS-30" docket 27,039 hits (all fuzzy token collisions; page-1 hits reviewed, none naming the ship). Asbestos-qualified variants justified by the overflows - "YMS-30" asbestos opinion 11 hits and "YMS-30" asbestos docket 1,983 hits - returned only the general asbestos-litigation docket population and unrelated civil appeals; 'yms' does not appear in the returned fields of reviewed hits. No qualifying litigation names this hull.

    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 - era inference for a 1941-42 diesel combatant remains reasonable but unproven. Undigitized NARA deck logs (two windows: 1942-08-12 to 1942-10-31 and 1943-04-01 to 1943-12-31), any surviving war-damage/loss report at NARA College Park (RG 38), and Bureau of Ships correspondence (RG 19) are the open primary leads. Does not establish or defeat any claim of exposure or legal eligibility.

    Atlas source

    true

    Evidence ID

    ev-uss-yms-30-yms30-12