Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 1040-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-22-yms22-pkt-1040-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-22 (page 11/19022) - construction milestones, specifications, disposal, merchant registry [other_primary]
- Locator
- NavSource 11/19022.htm - header block, milestone list, specifications block
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 8 July 1941 by Greenport Basin and Construction Co., Long Island, NY; launched 31 December 1941; completed 14 May 1942; struck from the Naval Register 19 July 1946; transferred to the War Shipping Administration March 1948; registered in 1949 to the Decatur Marine Corp. of San Pedro, CA, as the miscellaneous vessel Decatur out of Los Angeles; fate unknown. Call sign Nan-Baker-Able-Easy. Specifications: displacement 270 t (246 t in 1949 registry); length 136 ft (126.5 ft 1949); beam 24'6"; draft 8 ft (11.5 ft 1949); speed 15 kts; complement 32 (12 in 1949); armament one 3"/50 dual-purpose mount, two 20 mm mounts, two depth-charge projectors; propulsion two 880 bhp General Motors 8-268A diesels, Snow and Knobstedt single reduction gear, two shafts. NavSource also carries the launch anecdote that the sponsor's wife christened her 'YMS-22 - and dammit I'll serve on you if they'll let me!' three weeks after Pearl Harbor. Page states no DANFS history exists for this hull.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941-1949
- Population
- Greenport Basin construction trades (1941-42); crew (1942-46); Decatur Marine Corp. merchant crew (1949-forward)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track official records and are corroborated here by uboat.net and shipbuildinghistory.com, but the christening anecdote and the 1949 registry detail are not independently verified against primary sources. Contains no asbestos content. Disposal date variance: 'transferred to WSA March 1948' vs shipbuildinghistory 'Sold 1946' - see gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-01
-
[3]NARA Special List 44, List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 (ship-number arrangement) - RG 24 Entry 118, NAID 581208 [other_primary]
- Locator
- sl-44-ship-number.pdf page 116 (YMS-22 entries); series context https://www.archives.gov/research/military/logbooks/navy (RG 24 Entry 118, NAID 581208); digitized-set cross-check https://www.archives.gov/research/military/logbooks/navy-online
- Finding type
- historical_record
- Finding
- NARA holds deck logs for this hull in two ranges: 25 May 1942 - 30 September 1944, and 1 January 1945 - 30 November 1945 (PDF page 116). The logs document the hull's service from eleven days after completion through the end of the war; the October-December 1944 interval between the two ranges is unexplained in the finding aid. These are the primary operational record for this hull - daily position, operations, and personnel entries exist in physical form at NARA.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1945 (log coverage)
- Population
- Crew (1942-45); future NARA researchers
- Limitations
- Finding aid coverage only - establishes that logbooks exist for the stated ranges, not their contents. Log entries are the claimed coverage, not commissioning/decommissioning dates. The logs are NOT digitized: NARA's digitized deck-log index covers named vessels, and this never-named hull does not appear in it; physical or scanned-copy access via NARA College Park is required. No asbestos content expected or documented.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-02
-
[4]Franklin D. Roosevelt Presidential Library, Map Room file mr0665 - declassified U.S. Atlantic Fleet task-organization document, TF 24 Atlantic, dated 5 August 1943 (NARA-declassified, 'O. 12356, S.C. 3.3 or S.C. 3.4' release markings) [other_primary]
- Locator
- mr0665.pdf, TF 24 Atlantic section, 'GREENLAND PATROL' heading, dated August 5, 1943 (scan p. ~16 of the TF-24 block)
- Finding type
- historical_record
- Finding
- A primary Navy planning document places this hull on her wartime station: the August 1943 Task Force 24 (Atlantic Fleet) task organization lists YMS-22 in the Greenland Patrol section - in a minesweeper/harbor-defense grouping with YMS-5, YMS-7, and YMS-32 - within a section whose other vessels include Storis, Raritan, Bluebird, Albatross, Manitoo, Bear, Bowdoin, Northland, North Star, and Nogak, and which also covers the NOB Argentia organization. Establishes that YMS-22 was operating under the TF-24 Greenland Patrol organization in August 1943.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-08
- Population
- YMS-22 crew on the Newfoundland-Greenland station (1943)
- Limitations
- Task-organization list, not an operations record - establishes organizational assignment on one date (5 Aug 1943), not day-to-day employment or locations between dates. Scan OCR is degraded; the internal column layout leaves slight ambiguity as to whether YMS-22 sat under the 'MinDiv 25' or 'Harbor Defense Unit' subheading within the Greenland Patrol section - she is unambiguously within that section. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-03
-
[5]uboat.net Allied Warships of WWII, USS YMS-22 (YMS-22) - construction dates corroboration, 6 Sep 1944 Argentia A/S exercise citing ADM 173/19286 (UK National Archives, HMS Upright log) [other_primary]
- Locator
- uboat.net ship/9450.html - data table and 'Notable events' 6 Sep 1944 entry with source note ADM 173/19286
- Finding type
- historical_record
- Finding
- Corroborates construction milestones (ordered 1 April 1941; laid down 8 July 1941, Greenport Basin and Construction Co.; launched 31 December 1941; commissioned 14 May 1942; stricken 19 July 1946) and records a documented wartime event: on 6 September 1944, HMS Upright (Lt. J. A. L. Wilkinson, RN) conducted anti-submarine exercises off Argentia, 'most likely with USS YMS-22 (Lt.(jg) R. Walcott, USNR)' - placing this hull on the Newfoundland station thirteen months after the TF-24 listing, with a named commanding officer. Cited source is ADM 173/19286, the Royal Navy log of HMS Upright at the UK National Archives.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-09
- Population
- Lt.(jg) R. Walcott USNR and YMS-22 crew (1944); HMS Upright company
- Limitations
- uboat.net is a reputable secondary compilation citing a primary Royal Navy record; ADM 173/19286 itself was not independently examined - the 'most likely' hedge is the source's own. The exercise is documented on the British side; U.S.-side confirmation would be in the undigitized deck logs (see ev-02). 'Commissioned' framing vs NavSource 'completed' - see gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-04
-
[6]Shipbuilding History (shipbuildinghistory.com), Greenport Basin & Construction Co. yard table - YMS construction list and dispositions [other_primary]
- Locator
- shipbuildinghistory.com/shipyards/small/greenport.htm, YMS-20 block, YMS-22 row
- Finding type
- vessel_history
- Finding
- The builder-yard table corroborates this hull: 'YMS 22 - US Navy - Minesweeper - 278d tons - 136 ft - 14-May-42 - Sold 1946 as Decatur (ON 255849)' - confirming the Greenport construction and completion date and supplying the official merchant documentation number ON 255849 for her post-Navy identity Decatur. She sits in the YMS-20 through YMS-31 Greenport block; sister dispositions in the same table show most block survivors transferred to France in 1944, three lost to mines in 1944 (YMS-21 off Toulon, YMS-24 off St. Tropez, YMS-30 off Anzio), YMS-25 to Peru in 1947 - and YMS-22 alone listed as sold into U.S. merchant service.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941-1949
- Population
- Greenport Basin construction trades (1941-42)
- Limitations
- Secondary compilation (Tim Colton's shipbuildinghistory), not a primary registry - its 'Sold 1946' disposal framing conflicts in date with NavSource's 'transferred to WSA March 1948 / registered 1949' (see gaps); the ON 255849 documentation number is consistent with a real USCG merchant-document trail but was not verified against the MVUS register itself. Displacement figure 278d vs NavSource 270 t - spec variance in gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-05
-
[7]Named-crew accounts: Moapa Valley Progress (2012), 'A Story Worth Telling: Paul Robbins' - electrician aboard YMS-22; and Rouse Funeral Home obituary of John Dulon Foss (2018) - 'stationed on the Minesweeper YMS 22 patrolling the waters around Newfoundland' [reputable_press]
- Locator
- mvprogress.com 2012-06-06 profile; rousefh.com/obituaries/John-Dulon-Foss (also carried at legacy.com)
- Finding type
- historical_record
- Finding
- Two named members of this hull's wartime crew are on the record. Electrician Paul Robbins described YMS-22's run 'from Newfoundland, northeast half way across the Atlantic, skirting around the icebergs, sweeping for mines' - clearing the way for convoy shipping including 'supply ships, cruisers, destroyers and battle wagons' - with depth-charge duty against submarines over an assignment of 'over three years.' John Dulon Foss's obituary records that he 'was stationed on the Minesweeper YMS 22 patrolling the waters around Newfoundland.' Both corroborate the TF-24/Argentia station documented in ev-03 and ev-04.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1945 (service described); 2012/2018 (publication)
- Population
- Paul Robbins (Electrician 1st Class); John Dulon Foss; YMS-22 crew (wartime)
- Limitations
- Eyewitness/obituary accounts decades after the fact - carried only for the consistent core (named crew, Newfoundland-North Atlantic mine patrol). The Robbins article's detail that YMS-22 was 'a supply ship "Old Marion" converted to a Yard Mine Sweeper' is contradicted by the documented purpose-built construction record (ev-01, ev-05) and is expressly not adopted - see correction row ev-10. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-06
-
[8]Era inference built on: NavSource YMS-22 specifications (wooden-hulled YMS-1 class; two GM 8-268A diesels, two shafts); NavSource YMS/BYMS class index (481 wood-hulled motor minesweepers built 1941-45); GAO HRD-80-2 (see ev-08) [other_primary]
- Locator
- NavSource 11/19022.htm specifications; NavSource 11/19idx.htm class index; GAO HRD-80-2
- Finding type
- asbestos_application
- Finding
- A wooden-hulled, diesel-powered motor minesweeper built 1941-42 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a diesel craft of this type and period were thermal insulation and lagging on engine exhaust runs in the confined engine room, machinery gaskets, valve packing, and electrical insulation. As a diesel-driven wooden craft she carried no steam plant - the boiler/steam-line lagging pathway of steam vessels does not apply, and the wooden hull removes hull-insulation pathways typical of steel ships; the remaining era-consistent exposure channel is machinery-space materials.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1941-1949
- Population
- Greenport Basin construction trades (1941-42); engine-room crew (1942-46); Decatur merchant crew (1949-forward)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or crew exposure record located for YMS-22. 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-22-07
-
[9]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 highlights (full report 26 pp. at gao.gov/assets/hrd-80-2.pdf; direct fetch blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships, that its 1975 policy was to remove and replace with nonasbestos materials only insulation that was damaged or had to be removed for repairs, and that substitution of alternative insulation materials did not begin until the early 1970s - spanning this hull's entire construction and Navy service era (1941-46).
- 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. Direct curl fetch returned HTTP 403 (standing gao.gov automated-access block, confirmed this session); product-page highlights retrieved via firecrawl. Fieldwork yards were Long Beach and Norfolk - not this hull's builder. Does not establish materials aboard, individual exposure, quantity, or present-day presence.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-08
-
[10]Batch-8865 search ledger (this record): NARA Special List 44; NavSource; FDR Library Map Room mr0665; uboat.net (ADM 173/19286); shipbuildinghistory.com; Moapa Valley Progress + Rouse FH obituary; NARA digitized-logs index; CourtListener API v4 (4 base queries); GAO product page; CTF-24 administrative history; secondary web sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-22-01 through sl-uss-yms-22-14
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, museum record, or litigation naming USS YMS-22 was found in the public sources searched (see search_ledger). CourtListener returned 0 opinion hits and 0 docket hits on the 'USS YMS-22' base queries; the 'YMS-22' hull-number queries could not be completed - the fleet-wide pacing budget was saturated all session (eight spaced attempts over ~45 minutes, helper exit 2) and is logged as blocked, not a negative result. The only asbestos-web content is generic law-firm marketing on 'minesweepers' as a category - none names this hull; excluded by source policy. No museum or memorial survives her (sold commercially, fate unknown).
- 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 1941-42 Navy hull is era-consistent for asbestos materials, and the bare-hull-number litigation search is a genuine open gap (paced, not run). The deck logs (RG 24 E-118, undigitized) and any BuShips work packages are open leads; the merchant-phase record (ON 255849) ends undocumented. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-09
-
[11]Correction target: Moapa Valley Progress (2012) Robbins profile vs documented construction record (NavSource 11/19022; shipbuildinghistory.com Greenport yard table) [reputable_press]
- Locator
- mvprogress.com paragraph on Robbins's assignment; NavSource 11/19022.htm; shipbuildinghistory.com Greenport table
- Finding type
- historical_record
- Finding
- CORRECTION: the 2012 Robbins profile describes YMS-22 as 'a supply ship, "Old Marion", that had been converted to a Yard Mine Sweeper.' This is a factual error - a veteran's recollection or reporter's conflation. The documented record is unambiguous: YMS-22 was purpose-built as a YMS-1-class motor minesweeper at Greenport Basin and Construction Co. (laid down 8 July 1941, launched 31 December 1941, completed 14 May 1942); the YMS type was a designed minesweeper class of 481 units, not a conversion series. No vessel 'Old Marion' figures in any official record for this hull.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2012 (publication) vs 1941-42 (record)
- Limitations
- Corrects a circulating secondary-source error, not a material claim. The error likely conflates Robbins's pre-assignment training billet with the minesweeper herself. Does not affect the consistent core of his account (Newfoundland-North Atlantic sweeping aboard this hull).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-22-10