Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
-
[1]Dictionary of American Naval Fighting Ships, 'Egret' entry (DANFS transcription mirror, Haze Gray & Underway, via Wayback Machine capture 2025-05-31) [nhhc_danfs]
- Locator
- hazegray.org/danfs/mine/yms136.htm via Wayback 20250531235751
- Finding type
- vessel_history
- Finding
- DANFS: 'YMS-136 (q.v.) was named Egret 19 August 1947.' Transcriber's note to the entry: simultaneously reclassified AMS-46; redesignated MSC(O) 7 February 1955; struck from the Navy list 1 November 1959; transferred to the Brazilian Navy 15 August 1960 as Jutai.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1947-1960
- Limitations
- Sparse appendix-style DANFS entry with no wartime service narrative and no asbestos information. Naming date (19 Aug 1947) conflicts with NavSource's 1 Sep 1947 reclassification date - logged in gaps. The mirror's bracketed transcriber note prints 'MSC(O)-55', a typographical error for MSC(O)-46 (NavSource and hull sequence confirm -46). Live NHHC DANFS page for this ship was not locatable (NHHC link rot - standing issue since batch-01).
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-01
-
[2]NavSource Online Mine Warfare Vessel Photo Archive, 'Egret (MSC[O] 46) ex-Egret (AMS 46) ex-YMS-136' (compiled from Ships' Data/DANFS-era official records; includes U.S. Navy photo NH 84970 credited to Naval History and Heritage Command) [other_primary]
- Locator
- navsource.org/archives/11/19136.htm via Wayback 20250531235543; MinRon Four photo caption at navsource.org/archives/10/16/161069.htm
- Finding type
- vessel_history
- Finding
- The second Egret was laid down 16 July 1942 by Astoria Marine Construction Co., Astoria, OR; launched 8 February 1943; completed 19 March 1943 and commissioned YMS-136; named Egret and reclassified Motor Minesweeper AMS-46, 1 September 1947, and placed in service as a Naval Reserve training ship in the 3rd Naval District (New York); reclassified Coastal Minesweeper (Old) MSC(O)-46, 7 February 1955; struck from the Naval Register 1 November 1959; transferred to Brazil 15 August 1960 and renamed BNS Jutai (M 12); placed out of service 1969; fate unknown. Specifications: 270 t.; 136'; beam 24'6"; draft 8'; 15 kts.; complement 32; one 3"/50 DP mount, two 20mm mounts, two depth-charge projectors; two 1,000 shp General Motors 8-268A diesel engines, Snow and Knobstedt single-reduction gear, two shafts. A NavSource photo page for USS Orleans Parish (LST-1069/MCS-6) documents USS Siskin (MSC(O)-58) and USS Egret (MSC(O)-46) nested aft during Mine Squadron Four Caribbean exercises.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1942-1969
- Limitations
- Volunteer-compiled archive presenting official Ships' Data/DANFS/NHHC-derived material - authoritative in content but secondary in form. Naming/reclassification date (1 Sep 1947) conflicts with DANFS (19 Aug 1947) - logged in gaps. 'Decommissioned (date unknown)' per the affiliated NavalCoverMuseum entry; exact out-of-commission date undocumented. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-02
-
[3]NARA file unit 'YMS-136, 10/1/43-5/30/46', series Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities; National Archives at College Park; microfilm (scanned via Ancestry partnership, digital objects online) [other_primary]
- Locator
- catalog.archives.gov/id/193044313; forwarding-sheet image 32863_255675-00002.jpg
- Finding type
- vessel_history
- Finding
- The ship's muster-roll file unit covers 1 August 1943 - 30 May 1946. The forwarding sheet of the roll ending 30 September 1943 (reviewed via NARA digital object) is marked 'Final' coverage to 5-30-46 and shows the roll forwarded 2 October 1943 'From Noumea, New Caledonia', certified by Ensign Jonathan Edwards (Executive Officer) and approved by Lt. (jg) Gerald Pope, USNR (Commanding Officer) - placing YMS-136 in the South Pacific by autumn 1943 and documenting that the roll file closes 30 May 1946.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1943-10-01 to 1946-05-30
- Population
- Ship's crew on muster roll, 1943-1946
- Limitations
- Muster rolls are personnel records: they document the crew roster, forwarding location, and dates - not ship operations detail or material condition. The 'Final' notation and 30 May 1946 end date are consistent with going out of commission mid-1946 but do not themselves state a decommissioning date. No asbestos or materiel content.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-03
-
[4]NARA file unit 'USS YMS-136 - AA Act Rep, 6/17/44, Southeast of Saipan Island, Marianas' (duplicate catalog entry naId 77802397), Record Group 38 (Records of the Office of the Chief of Naval Operations), series World War II War Diaries, Other Operational Records and Histories; microfilm Roll A1034 (scanned via Fold3 partnership, digital objects online) [other_primary]
- Locator
- catalog.archives.gov/id/78505554 and /id/77802397; series: WWII War Diaries, Other Operational Records and Histories (RG 38)
- Finding type
- vessel_history
- Finding
- A Navy anti-aircraft action report filed by USS YMS-136 records the ship southeast of Saipan Island, Marianas, on 17 June 1944 - during the Saipan amphibious operation. Sister YMS craft (e.g., YMS-242, YMS-216) filed same-date action reports for the same location in the same NARA series.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1944-06-17
- Population
- Ship's crew, June 1944
- Limitations
- Catalog-level description reviewed; report content (imagery online via Fold3 partnership) not exhaustively transcribed in this pass. Documents a position/event, not material condition. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-04
-
[5]NARA file unit 'Activity Number 0204 0046 - EGRET (YMS-136 / AMS-46 / MSCO-46) - 1952', series Muster Rolls and Personnel Diaries of U.S. Navy Ships (post-1949); National Archives at College Park; microfilm publication USNMR_0269 (scanned via Fold3 partnership) [other_primary]
- Locator
- catalog.archives.gov/id/99923585
- Finding type
- vessel_history
- Finding
- Post-1949 Navy muster rolls exist for the Egret under her consolidated activity number covering 1951-52 (monthly roll images January-March 1951 and following visible in the digitized file), confirming the ship remained on the Navy list in Naval Reserve training service through the Korean War era under all three of her designations.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1951-1952
- Population
- Naval Reserve training ship personnel, 1951-1952
- Limitations
- Muster/personnel diary records - document manning and dates, not materiel condition. Coverage beyond 1951-52 in this file unit not fully enumerated. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-05
-
[6]Dictionary of American Naval Fighting Ships, 'USS Egret I (AMc-24/IX-181)' entry (DANFS transcription mirror, HyperWar/ibiblio) [nhhc_danfs]
- Locator
- ibiblio.org/hyperwar/USN/ships/dafs/IX/ix181.html
- Finding type
- vessel_history
- Finding
- The first Egret (AMc-24) was placed in service 10 June 1941, served in the 4th Naval District and Potomac River Naval Command, was reclassified IX-181 on 17 July 1944, and was transferred to the Maritime Commission for disposal 17 June 1946 - a different vessel from this hull, relevant only as a name-collision check for records and litigation searches.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-09-24
- Study period
- 1941-1946
- Limitations
- Disambiguation row only - the AMc-24/IX-181 vessel shares only the name; any 'USS Egret' record predating 1947 belongs to that hull, not this one. Nothing here bears on asbestos aboard AMS-46.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-06
-
[7]NavSource YMS-1 class specifications (136', 270 t., GM 8-268A diesels, two shafts) + The SHIPS Project, 'The First Ones In - The Story of YMS-378' (class construction account: wooden hull, non-magnetic copper fastenings, diesel propulsion for magnetic-mine sweeping) [other_primary]
- Locator
- navsource.org/archives/11/19001.htm (class specs); shipsproject.org/downloads/TheFirstOnesIn-theStoryofYMS-378_SHIPSProject.pdf
- Finding type
- asbestos_application
- Finding
- The YMS-1 class (including the YMS-135 subclass to which this hull belongs) was a wooden-hulled, deliberately non-magnetic design - wood construction with non-magnetic fastenings - powered by twin General Motors diesel engines rather than steam. The boilers, steam drums, and steam-distribution lagging that carried most of the era-typical asbestos load aboard steam vessels were absent by design. Residual era-typical asbestos applications aboard small diesel craft of the period - diesel exhaust insulation, machinery gaskets and packing, winch brake linings, electrical insulation - remain class inference, not ship-proven.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-24
- Study period
- 1941-1945 construction era
- Population
- Construction trades (Astoria Marine, 1942-43); minesweeper crews (class context)
- Limitations
- Class/design-level documentation; no YMS-class materials schedule, specification, or asbestos itemization was located. Absence of a steam plant materially reduces (does not eliminate) the expected asbestos footprint vs. era steam tonnage; residual applications listed are plausible-by-era inference only and may be wrong for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-07
-
[8]Corn, Jacqueline Karnell, and Jennifer Starr, 'Historical perspective on asbestos: Policies and protective measures in World War II shipbuilding,' American Journal of Industrial Medicine 11(3):359-373 (1987) [other_primary]
- Locator
- Abstract and article, AJIM 11(3):359-373
- Finding type
- asbestos_application
- Finding
- Peer-reviewed historical study documents that asbestos was used extensively as a fireproofing and insulating material in U.S. shipbuilding during WWII - the era and program under which this hull was mass-produced at a small Oregon yard (Astoria Marine Construction Co., Astoria) - and that wartime demand drove unprecedented asbestos utilization across vessel construction.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-24
- Study period
- 1940s era documented; article 1987
- Population
- WWII shipyard workers and ship crews (class context)
- Limitations
- Program/era-level scholarship; does not name this vessel or class and does not establish that asbestos was or remains aboard this hull - in particular it speaks chiefly to conventional steel/steam construction, not wooden-hulled diesel minesweepers. Does not establish quantity, location, condition, exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-08
-
[9]Batch-1735 search ledger (this record): CourtListener API v4 opinion and docket searches for 'USS Egret', 'Egret' minesweeper, 'YMS-136', 'YMS 136', 'AMS-46', 'AMS 46', and 'Egret' asbestos; NARA catalog ship-name search; NavSource/DANFS/secondary-source sweep [court_record]
- Locator
- search_ledger rows sl-uss-egret-ams46-01 through sl-uss-egret-ams46-10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific record located: no asbestos survey, abatement contract, hazmat disclosure, or docketed case naming this hull under any designation (YMS-136 / AMS-46 / MSC(O)-46 / Jutai) was found in the public sources searched (see search_ledger). All sixteen CourtListener hits on 'AMS-46/AMS 46' were citation-string collisions in Florida foreclosure opinions ('Deutsche Bank Trust Co. Ams., 46 So.3d 1202'), not the vessel.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 2026-09-24
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - era construction is consistent with residual asbestos applications even on wooden diesel craft. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility. CourtListener indexes opinions/RECAP dockets - state trial filings and asbestos MDL sub-docket material not naming the hull would not surface.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-09
-
[10]Navios de Guerra Brasileiros (NGB), 'Navio Varredor Jutai - M 12' entry (Brazilian naval vessel reference compiled from Brazilian Navy records) [other_primary]
- Locator
- naval.com.br/ngb/J/J059/J059.htm
- Finding type
- vessel_history
- Finding
- Brazilian fleet reference confirms this hull as NV Jutai (M 12), ex-USS Egret MSC-46, the third Brazilian ship of that name, built at Astoria Marine Construction Company, incorporated into the Brazilian Navy 15 August 1960 - corroborating the transfer and identity. The entry lists her launch as 9 February 1943, one day later than U.S. sources (8 February 1943).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1960-1969
- Limitations
- Brazilian secondary reference (not an official navy page); used for corroboration of identity and transfer, not for specifications. Launch-date discrepancy (9 vs 8 Feb 1943) logged in gaps. No asbestos or material-condition content.
- Atlas source
- true
- Evidence ID
- ev-uss-egret-ams46-10