Evidence
13 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-13).
-
[1]research packet 1037-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-184-yms184-pkt-1037-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-184 - construction timeline, specifications, commanding officers, call sign, Soviet transfer and disposal (verified live 2026-10-04 via firecrawl scrape); build/delivery corroborated by shipbuilding-history Greenport Basin yard list [other_primary]
- Locator
- NavSource 11/19184.htm header block, specifications block, commanding-officer list, T-595 photo captions
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 29 May 1942 by the Greenport Basin and Construction Co., Long Island, NY; launched 18 July 1942; completed 25 January 1943; 'Transferred 19 July 1945 to the Soviet Union and reclassified T-595'; 'Assigned to the Pacific Fleet 1 August 1945' (Soviet Pacific Fleet service, listed in the Soviet-service block); 'Placed out of service 7 October 1955 and scrapped.' Page header: 'YMS-184 served the Navies of the United States and the Soviet Union.' Specifications: 270 t.; length 136'; beam 24'6"; draft 8'; speed 13 kts.; complement 50; one 3"/50 dual-purpose mount, two 20mm mounts, two depth charge tracks; two 800bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Call sign Nan-Yoke-Zebra-Zebra. Commanding officers listed: LTJG R. J. McConachie, USNR (1945); LTJG R. L. Carington, USNR (1945). Two photos of the hull in Soviet service as T-595 sourced from S. S. Berezhnoi's 'Flot SSSR, Korabli i suda lendliza' (Soviet Navy lend-lease warships). Page states no DANFS history exists for YMS-184.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1955
- Population
- Greenport Basin yard construction trades (1942-43); US crew (1943-45); Soviet crew as T-595 (1945-55)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track Navy records and the build/delivery milestone is corroborated by the shipbuilding-history Greenport yard list (delivered 25 Jan 1943). The Soviet 'assigned to the Pacific Fleet 1 August 1945' line reflects Soviet-service assignment, not a US Navy event. Contains no asbestos content. No US commissioning, decommissioning, or Naval Register strike date is given.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-01
-
[3]NARA file unit 'YMS-184, 1/26/43-7/18/45', NAID 193046119, Container Roll 9025 - RG 24 Records of the Bureau of Naval Personnel, series Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities (141 digitized images, Ancestry partnership scan) [other_primary]
- Locator
- NARA catalog file unit NAID 193046119 (https://catalog.archives.gov/id/193046119); frames 32863_255687-00005 (crew list, 'U.S.S. YMS 184' header) and -00008 (report of changes)
- Finding type
- historical_record
- Finding
- The National Archives catalogs a digitized RG 24 muster-roll file unit for this hull spanning 26 January 1943 - 18 July 1945 (141 images online) - covering essentially the entire US Navy service of the vessel, ending the day before the documented Soviet transfer. Spot-read frames confirm the rolls are titled 'of U.S.S. YMS 184' (first roll page header; report-of-changes sheets captioned 'U.S.S. YMS 184').
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-01-26 to 1945-07-18
- Population
- YMS-184 crew (1943-45)
- Limitations
- Establishes wartime Navy service and personnel documentation only; muster rolls contain no asbestos or material content. Only opening frames were read (roll title card, instructions, first crew-list and report-of-changes pages) - actual complements by date and individual names are verifiable there but not extracted.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-02
-
[4]NARA Special List #44, 'List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947' (ship-number edition, PDF page 116) - deck-log coverage for YMS-184 [other_primary]
- Locator
- sl-44-ship-number.pdf, PDF page 116 (YMS-184 row)
- Finding type
- historical_record
- Finding
- Special List 44 records U.S. Navy deck logs for YMS-184 covering 27 January 1943 - 18 July 1945 (PDF page 116, entry read directly via pdftotext: 'YMS-184 1/27/1943 7/18/1945'). The window opens two days after the documented completion date and closes the day before the documented Soviet transfer (19 July 1945) - i.e., it spans the hull's entire US Navy career. The logs are NARA holdings in the Navy logbooks series; they are not part of the digitized muster-roll set.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-01-27 to 1945-07-18
- Population
- YMS-184 crew (1943-45)
- Limitations
- Archival lead only: SL44 is an item list of logbook holdings - the deck logs themselves are undigitized and were not read; they are the primary source by which day-by-day operations (East Coast shakedown, Pacific transit, Marianas/Ngulu operations, Cold Bay staging) could be verified. Deck logs contain no asbestos or material content in any case.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-03
-
[5]NARA file unit 'COMINRON - Rep of minesweeping opers in Ngulu Atoll, Carolines, 10/15-23/44', NAID 83560517 - RG 38 Records of the Office of the Chief of Naval Operations, series World War II War Diaries, Other Operational Records and Histories (micro Roll A1847, 9 digitized images, Fold3 scan) - Commander Mine Squadron ONE Serial 037 of 1 November 1944, 'Report of Minesweeping Operations - NGULU Atoll' [other_primary]
- Locator
- NARA catalog file unit NAID 83560517; images A_1847/0335 (unit composition, p.1), 0337 (per-ship mines table, p.3), 0339 (operation narrative, p.5); catalog.archives.gov/id/83560517
- Finding type
- historical_record
- Finding
- A read-in-full primary operational record names this hull in combat minesweeping: the ComMinRon ONE report (Serial 037, 1 Nov 1944) lists the Ngulu Atoll sweep unit under Captain R. W. Clark, USN - support/headquarters ship USS MONTGOMERY (DM 17) and Sweeping Unit 'U.S.S. YMS 324, U.S.S. YMS 325, U.S.S. YMS 184, U.S.S. YMS 180, U.S.S. YMS 136'. The report's 'Summary of Mines Swept and how Disposed of by Ships' table credits USS YMS 184 with 13 mines swept, 2 destroyed, 2 sunk. Narrative: MONTGOMERY and five YMS's arrived off the Ngulu Lagoon entrance shortly after daylight; MONTGOMERY destroyed a concrete radio and weather station by gunfire; YMS 325 led the remaining four YMS's, streamed for forty feet, into the lagoon; sweeping ran daily 0600-1600 using moored, magnetic and acoustic gear; 81 mines total were swept, destroyed or otherwise accounted for, with about 60 estimated remaining in the northern lagoon; the operation was ordered in support of survey and reconnaissance.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-10-15 to 1944-11-01
- Population
- YMS-184 crew; Ngulu sweep unit (YMS 324, 325, 184, 180, 136; USS Montgomery DM-17), October 1944
- Limitations
- Ship-specific wartime operations documentation, read via the digitized images (all 9 frames examined; per-ship totals transcribed from the report table). Establishes YMS-184's participation in the Ngulu Atoll sweep (operation window 15-23 October 1944 per the file-unit title; daily disposal table covers 10/19-10/23/44). Contains no asbestos or material content - combat-record provenance only.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-04
-
[6]NARA catalog full-text associations for 'YMS-184' across RG 38 WWII war diaries/operational records and RG 24 station rolls - 184 file-unit matches including war diaries documenting her operating areas [other_primary]
- Locator
- NARA catalog search 'YMS-184' (184 file units); 'USS YMS-184' (48 file units); NAIDs listed in finding_value
- Finding type
- historical_record
- Finding
- The NARA catalog's OCR full-text index associates 'YMS-184' with 184 file units, tracing the hull's wartime movement: COM NY GR EASTSEAFRON war diary Feb 1943 (NAID 134266723) and COM NY GR ESF Jul 1943 (NAID 135949724) - East Coast/sea-frontier phase; COMINSHPAT-PAC Balboa Section Inshore Patrol Sep 1943 (NAID 78208472) and NAV STA COCO SOLO Sep 1943 (NAID 78187444) - Panama Canal Zone transit; NAV STA BORABORA Oct 1943 (NAID 136015469) - South Pacific; COMTASK-GROUP 53.16 'Report of action against enemy aircraft east of the Marianas Islands, 6/17/44' (NAID 77586248) - Marianas campaign association; COMINRON 1 war diary Oct 1944 (NAID 78671683) - the Ngulu operation's reporting chain; USS MONTGOMERY war diary Oct 1944 (NAID 78683049) - the Ngulu headquarters ship; further ship and station diaries Oct 1944-Feb 1945 (ELLET, PYRO, NIOBRARA, ALKES, MEGREZ, LST-125, LST-220, PC-1130, CAPTIVATE, GLENDALE, SEDERSTROM); COM 13 war diary May 1945 (NAID 101700632) and Naval Receiving Station Seattle transients Apr-Aug 1945 (NAID 185072608) - consistent with staging to the Aleutians/Cold Bay for Project Hula. A second RG 24 file unit, 'USS YMS-25 to USS YSO-36' (NAID 118967609, Index to Muster Rolls 1939-1975, 1,342 images), contains index entries for this hull.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1945
- Population
- YMS-184 crew across East Coast, Panama transit, Central/Western Pacific operations, and Cold Bay staging (1943-45)
- Limitations
- Archival leads only: these are catalog full-text index associations - the individual pages naming YMS-184 were not read (the Ngulu report, ev-04, excepted), so each mention's context (assignment, transit, task-organization listing) is unverified. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-05
-
[7]NHHC, 'United States Pacific Fleet Organization, 1 May 1945' (online reading room transcription of the official fleet organization) - YMS-184 listed with commanding officers [nhhc_danfs]
- Locator
- NHHC Pacific Fleet Organization page, MINE DIVISION SIXTY table (YMS rows)
- Finding type
- historical_record
- Finding
- An official Navy document places this hull in the Pacific Fleet's minecraft order of battle on 1 May 1945: 'YMS 184' is listed in the MINE DIVISION SIXTY table (ComMinDiv 60, Comdr. M. D. Matthews) with commanding officers 'Lt. (jg) R. J. McConachie (USNR) (D) / Lt. (jg) R. L. Carington (USNR) (R)' - corroborating both NavSource commanding-officer entries and her Pacific Fleet assignment in the months before the Cold Bay transfer.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-05-01
- Population
- YMS-184 crew under Lt.(jg) R. J. McConachie / Lt.(jg) R. L. Carington (May 1945)
- Limitations
- Fleet-listing document only: establishes hull presence and commanding officers as of 1 May 1945, not day-by-day operations. The (D)/(R) suffixes are the document's own officer codes (relief markers), not expanded here. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-06
-
[8]Richard A. Russell, 'Project Hula: Secret Soviet-American Cooperation in the War Against Japan' (No. 4, The U.S. Navy in the Modern World Series; Naval Historical Center, Department of the Navy, Washington, 1997) - appendix table of transferred ships (full text mirrored at generalstaff.org) [nhhc_danfs]
- Locator
- Project_HULA.htm appendix table (YMS rows, 19 Jul. group); narrative 'second increment of minesweepers' and witnessed-destruction passages
- Finding type
- historical_record
- Finding
- The official Naval Historical Center monograph on Project Hula - the 1945 program under which Navy Detachment 3294 trained ~12,000 Soviet personnel and transferred 149 ships and craft at Cold Bay, Alaska (28 PF, 24 AM, 30 LCI(L), 31 YMS, 32 SC, 4 YR) - documents this hull in its appendix of 'U.S. Navy Combatant Ships Transferred ... May-September 1945': 'YMS 184 | T-595 | 19 Jul. | 1955-stricken'. Narrative context in the same monograph: transfers at Cold Bay paired each ship's departure from US service with her commissioning under the Soviet naval ensign; 'Maxwell's team also transferred a second increment of minesweepers ahead of schedule, so that by the end of July 100 vessels out of the original 180 were in Soviet hands'; Soviet crews steamed the transferred minecraft in convoys to Petropavlovsk; the transferred YMS had 'short service lives, and all were decommissioned by the mid-1950s'; and postwar disposal negotiations ended in witnessed-destruction and striking arrangements for the unreturned hulls.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-07-19 (transfer); 1945-1956 (Soviet service/disposition window)
- Population
- US and Soviet personnel at Cold Bay (July 1945); Soviet crew of T-595 (1945-55)
- Limitations
- Official NHC publication, but the appendix is a summary table - '19 Jul.' transfer and '1955-stricken' Soviet disposition are documented; no US Naval Register strike date is given for this hull and the day-level Soviet service detail is not tabulated. Mirror hosted at generalstaff.org; pagination corresponds to the printed appendix. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-07
-
[9]Shipbuilding History, Greenport Basin & Construction Co. yard list (Greenport, NY) - YMS-184 entry and yard history [other_primary]
- Locator
- shipbuildinghistory.njscuba.net/us-comm-small/greenport/ - yard-history text and YMS-184 row
- Finding type
- vessel_history
- Finding
- The Greenport yard list independently corroborates this hull's build and delivery: 'YMS-184 ... US Navy ... minesweeper ... 278d ... 136 ... 25 Jan 1943 ... to the USSR 1945 as T-585, scrapped'. Yard history text: Greenport Basin & Construction Company was started in the mid-19th century by Pliny C. and Theodore W. Brigham building fishing vessels and yachts; during WWII they acquired neighbor Greenport Shipyard Company and expanded into steel boatbuilding; the yard continues today as Greenport Yacht & Shipbuilding Company. Neighboring entries confirm the Greenport YMS block (YMS-183 delivered 14 Jan 1943; YMS-185 onward built as BYMS lend-lease for the Royal Navy).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1943
- Population
- Greenport Basin construction trades (1942-43)
- Limitations
- Secondary compilation - corroborates builder and 25 Jan 1943 delivery but carries a CONFLICTING Soviet designation 'T-585' against 'T-595' in the NHC Russell appendix and NavSource (see gaps); the T-585 reading is treated as a transcription variant, not adopted. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-08
-
[10]Era inference built on: NavSource specifications (2 x GM 8-268A diesels, reduction gear, 2 shafts); YMS-1 class documented as wooden-hulled auxiliary motor minesweepers built to a common BuShips-type design across small yacht/boat yards nationwide (secondary literature); GAO HRD-80-2 era finding (ev-10); NARA asbestos research guide archival pathway (ev-09) [other_primary]
- Locator
- NavSource specifications block; GAO HRD-80-2 product page; NARA asbestos guided-topic page
- Finding type
- asbestos_application
- Finding
- A diesel-driven wooden minesweeper completed in January 1943 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a diesel yard craft of this period were engine exhaust and muffler lagging, compressed-asbestos sheet gaskets, valve and machinery packing, electrical insulation, brake linings, and insulation board in machinery and accommodation spaces. As a diesel vessel she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply; the wooden hull reduces but does not eliminate the era application set (machinery, exhaust, joiner/insulation, electrical).
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1955
- Population
- Greenport Basin yard construction trades (1942-43); US crew (1943-45); Soviet crew (1945-55); unknown Soviet disposal-era handlers (1955)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or plan was located for YMS-184. 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-184-yms184-09
-
[11]National Archives, 'Researching Asbestos aboard US Naval Vessel up through 1961' - official research guide to the RG 19 Bureau of Ships records documenting asbestos in U.S. Navy materiel 1941-1961 [other_primary]
- Locator
- archives.gov guided-topic page (verified live, HTTP 200); RG 19 entries A1 1266-A..P, UD 1001-1015, UD 1027 (S-18), PI-133 1273; RG 143 A1 90, A1 8 series
- Finding type
- regulatory
- Finding
- NARA's official guide states 'the use of asbestos in U.S. Navy materiel from 1941-1961 is a frequently requested topic' and documents the archival pathway for hull-level determination: RG 19 Bureau of Ships general/confidential/secret correspondence filed by hull designation (this hull: 'YMS184'; class: 'YMS1 Class'; type correspondence as last resort), Ship/General Information Books covering propulsion, auxiliary machinery, piping, ventilation, heating and air-conditioning systems, shipbuilding-yard QM correspondence files, specification files (RG 19 S-18/S-19 series; RG 143 specification indexes), and cartographic engineering drawings (19-Hull, 19-Micro) - i.e., the records by which this hull's material content could be proven exist in undigitized archival series.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1941-1961 (guide scope)
- Population
- Navy construction/maintenance trades 1941-1961 (research-scope population)
- Limitations
- Research-pathway documentation, not a hull record: the guide confirms that asbestos content is an archival research question answerable only via undigitized RG 19/RG 143 records - none of those series were consulted for this hull. Does not establish or negate materials aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-10
-
[12]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 (1942-43) and US service era (1943-45).
- 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 2026-10-04) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-11
-
[13]Batch-8845 search ledger (this record): NavSource; NARA catalog (muster-roll file unit + SL44 deck-log listing + COMINRON Ngulu operation report read in full + war-diary full-text associations); NHHC Pacific Fleet organization; Russell/NHC Project Hula monograph appendix; shipbuilding-history Greenport yard list; NARA asbestos research guide; GAO product page (blocked); NHHC/DANFS (no entry); secondary web litigation sweep; CourtListener via cl-auth-search.py helper (partial - see ledger) [other_primary]
- Locator
- search_ledger rows sl-uss-yms-184-yms184-01 through -13
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or docketed case naming YMS-184 was found in the public sources searched (see search_ledger). CourtListener produced only name collisions on the completed queries (two Texas appellate opinions matching '184' tokens; a 4,859-result docket overflow colliding on '184' docket-number fragments); two base queries and the asbestos-qualified variant were blocked by fleet pacing at research time - logged as blocked, not a negative result. The hull's wooden construction and diesel plant bound the plausible era application set to machinery/exhaust lagging, gaskets, packing, electrical insulation, brake linings, and joiner insulation - no boiler/turbine lagging pathway applies.
- 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 - the NARA guide documents undigitized RG 19 series where hull-level material records could exist, and the deck logs/muster rolls do not address material content. Litigation status remains partially open: two of four base queries were pacing-blocked at research time. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-184-yms184-12