Evidence
15 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-15).
-
[1]research packet 1032-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-136-yms136-pkt-1032-packet-md
-
[2]DANFS, 'Egret II (YMS-136)' (NHHC live page, published 2015-07-07) [nhhc_danfs]
- Locator
- DANFS 'Egret II (YMS-136)' entry, history.navy.mil
- Finding type
- vessel_history
- Finding
- NHHC DANFS entry for this hull (verified live 2026-10-04): 'A bird of the heron family known for the beauty of its plumage. II - YMS-136 (q.v.) was named Egret 19 August 1947.' Establishes the hull's naming date, its ordinal as the second ship named Egret, and the namesake.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1947 (entry scope)
- Limitations
- Ship-specific history only; the DANFS entry is minimal - no construction, service, or asbestos content. Conflicts with NavSource/NavalCoverMuseum on the naming/reclassification date (19 Aug vs 1 Sep 1947 - see gaps). The 'second Egret' refers to name count; the first was Egret (AMC-24/IX-181), a different hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-01
-
[3]NavSource Online: Mine Warfare Vessel Photo Archive, Egret (MSC[O] 46) ex-Egret (AMS 46) ex-YMS-136 - milestone chain, specifications, commanding officers, photo sources (NHHC photo NH 84970) [other_primary]
- Locator
- NavSource 11/19136.htm header block, specifications block, commanding-officer table
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull (verified live at navsource.net 2026-10-04): 'the second Egret' 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: 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 1,000shp General Motors 8-268A diesel engines, Snow and Knobstedt single-reduction gear, two shafts. YMS-136 call sign Nan-William-Sugar-Queen. Commanding-officer list: LTJG G. F. Montiel (1945); Chief Boatswain J. W. Cantrell (1950-Oct 1951); LT Robert Edward Classen (Oct 1951-19 Aug 1952); LTJG Rodney Emmett Bornhop (19 Aug-Dec 1952); LT Robert Carhart Conolly II (Dec 1952-Feb 1954); LT Eugene Dale Geiger (Feb 1954).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1969
- Population
- AMCCO construction trades (1942-43); crew (1943-45); Naval Reserve training personnel, 3rd Naval District (1947-59); Brazilian Navy crew (1960-69)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry; milestone dates track DANFS/NVR practice but conflicts exist (reclassification date, spec figures - see gaps). Contains no asbestos content. The 1960 transfer and 1969 out-of-service dates are given without a primary citation on the page.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-02
-
[4]NavSource plank-owner collection (crewman Lester Fisk Williams, aboard 19 Mar 1943 - 28 Mar 1945): commissioning-day Report of Changes and muster-roll forwardings / Reports of Changes for USS YMS-136 [other_primary]
- Locator
- navsource.net/archives/11/pdf/1119136co.pdf (6 pp.) and .../pdf/111913600.pdf (Williams document set, 7 pp.)
- Finding type
- historical_record
- Finding
- Primary personnel documents for this hull, scanned from a plank owner's retained papers: Report of Changes for the commissioning day of USS YMS-136, 19 March 1943 (initial crew received from Receiving Stations PSNY Bremerton, San Francisco, and San Diego). Muster-roll forwarding sheets place the hull at San Pedro, CA (forwarded 7 August 1943; certified by Lt.(jg) Gerald Pope, Executive Officer; approved by Lt. W. R. Stanwood, Commanding Officer), Pearl Harbor, T.H. (31 August 1943), Pago Pago, American Samoa (15 September 1943), and Noumea, New Caledonia (forwarded 2 October 1943 - Pope now commanding, Jonathan Edwards now executive officer). Reports of Changes for the month ending 30 November 1943 and the quarter ending 31 December 1943 (full ~29-name crew muster) complete the sequence; a cover note states the rolls span '8-1-43 to 5-30-46 Final.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943
- Population
- Commissioning crew (~15 received 19 Mar 1943); wartime crew (~29 enlisted, Dec 1943 roll)
- Limitations
- Establishes a documented Pacific transit for this hull in Aug-Oct 1943 (Astoria -> San Pedro -> Pearl Harbor -> Pago Pago -> Noumea) and the early command sequence. Donor-family scans hosted by NavSource - primary documents, but provenance rests on the donor's collection rather than a NARA accession; no asbestos content. The '5-30-46' roll-end note suggests rolls ran past the SL44 logbook span.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-03
-
[5]USS YMS-136 Special Action Report - Anti-Aircraft Action by Surface Ships, 17 June 1944, with endorsement chain through CTG 53.16, CTF 53 (Third Amphibious Force), ComPhibForPac, ComFifthFlt, to CinCPac (declassified; Williams collection via NavSource) [other_primary]
- Locator
- navsource.net/archives/11/pdf/111913600.pdf, pp. 1-7 (appendix page, forwarding letter, report, endorsements 1/3/4)
- Finding type
- historical_record
- Finding
- Ship's own action report for this hull (declassified, NARA declassification marking per E.O. 13526): on 17 June 1944 at position 145 deg E / 13 deg 30' N - Marianas operating area - YMS-136, in the screen on the port side of a convoy making course 142 T at 8 knots, engaged three enemy torpedo bombers identified as KATE type; ammunition expended 120 rounds 20mm and 500 rounds .50 caliber; no hits sustained, no casualties. Report signed by Jonathan Edwards, Lt.(jg), D-V(G), USNR, commanding officer, dated 28 June 1944 (FPO San Francisco). Endorsements: First, Commander Task Group 53.16 (Capt. G. B. Carter, USN, Commander LST Flotilla Five, Third Amphibious Force), 5 July 1944, via CTF 53; Third, Commander Amphibious Forces, U.S. Pacific Fleet, 21 September 1944; Fourth, Commander Fifth Fleet (A. C. Davis, Chief of Staff), 23 September 1944 - for CinCPac. A declassified task-organization annex in the same collection lists YMS-136 under task groups 53.9 and 53.16.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944
- Population
- Wartime crew aboard during the 17 Jun 1944 action (complement ~32)
- Limitations
- Ship-specific operational record establishing wartime service under TF 53 (Third Amphibious Force, Southern Attack Force for the Marianas/Guam operation) in mid-1944. The annex's parent operation order is not identified on the scanned page - dual TG listing (53.9 and 53.16) may reflect sequential assignment or grouping; do not over-read. Personnel documents, no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-04
-
[6]National Archives, Special List 44: List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 - ship-number index entry for YMS-136 (NARA-hosted PDF; corroborated by the bound-volume scan at the ACPL Genealogy Center mirror) [other_primary]
- Locator
- sl-44-ship-number.pdf p. 115 (NARA-hosted); bound-edition printed p. 514 via http://genealogycenter.net/nara/images/narasl44/546.jpg; SL44 overview https://www.archives.gov/research/military/logbooks/resources
- Finding type
- historical_record
- Finding
- Special List 44 entry verified two ways: (a) NARA-hosted ship-number index PDF, page 115, row 'YMS-136 3/19/1943 6/30/1945'; (b) the bound-volume edition scan (ACPL Genealogy Center mirror), printed page 514, 'YMS-136 - Mar. 19, 1943-June 30, 1945 - 6' logbooks. NARA holds logbooks for this hull covering 19 March 1943 through 30 June 1945 - the full WWII commissioning period.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-03-19 to 1945-06-30
- Population
- Wartime crew (1943-45) - logbooks are the personnel/operations record
- Limitations
- Archival lead only: SL44 documents that logbooks exist and their date span, not their content - the date range is not asserted as commissioning/decommissioning evidence. NARA's asbestos research guide expressly states deck logs and muster rolls provide no direct evidence of asbestos or ship components. The 'six logbooks' count comes from the bound-volume scan (printed p. 514); the NARA index PDF shows a single date-span row without a count. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-05
-
[7]NARA, Navy Ship Deck Logs available online - 'Egret (AMS/MSCO-46/YMS-136)' panel: digitized monthly deck logs January 1956 through April 1958 [other_primary]
- Locator
- archives.gov/research/military/logbooks/navy-online, panel 'Egret (AMS/MSCO-46/YMS-136)' (#collapsepanel_77346); monthly logs at catalog.archives.gov NAIDs 214866256 ff. (1956) through 296941937 (Apr 1958)
- Finding type
- historical_record
- Finding
- The NARA deck-log portal lists this hull under 'Egret (AMS/MSCO-46/YMS-136)' with digitized monthly deck-log scans for January 1956 - April 1958 (monthly NAID links to catalog.archives.gov). Coverage falls inside the ship's 3rd Naval District Naval Reserve training period (as MSC(O)-46); the WWII logbooks (SL44) and any 1945-55 logs are not in the digitized set. The index consolidates the three U.S. designations onto one hull and displays commission/decommission as unknown.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1956-1958
- Population
- Naval Reserve training personnel and crew, 3rd Naval District (1956-58)
- Limitations
- Archival lead only - establishes that digitized deck logs exist for 1956-58, not their content. No asbestos content located in the index itself; per NARA's guide, deck logs are not direct asbestos evidence.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-06
-
[8]National Archives, 'Researching Asbestos aboard US Naval Vessel up through 1961' - official research pathway for hull-level asbestos determination [other_primary]
- Locator
- Beginning Research; Bureau of Ships correspondence (RG 19); private-yard QM files; Cartographic Branch drawings S39/S48; RG 143 specifications; 'Other Records and their usefulness'
- Finding type
- regulatory
- Finding
- NARA's official guide describes the archival path for determining whether a particular U.S. naval vessel carried asbestos material (1941-1961 scope): RG 19 Bureau of Ships General/Confidential/Secret correspondence filed by hull designation, class, or type (filed 'YMS-136' for this hull; 'YMS-135 class' for the type); private-yard 'QM' correspondence for the builder; specifications; and RG 19 ship-engineering drawings, including S39 Insulation and Lagging and sometimes S48 Piping. It also states that deck logs and muster rolls provide no direct evidence of asbestos or ship components.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1941-1961
- Population
- Navy construction and maintenance trades, 1941-61 research scope
- Limitations
- Research-pathway documentation only. No RG 19 or RG 143 file, engineering drawing, specification, or correspondence for YMS-136/Egret was examined; the guide does not establish or negate asbestos aboard this hull - it identifies where a hull-level answer would live.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-07
-
[9]NPS NRHP nomination, Astoria Marine Construction Company Historic District (NRIS 13001058, listed January 2014), Appendix 3 Table 1 'WWII Wartime Vessels Constructed by Astoria Marine Construction Company' + construction-era narrative; HAER OR-181 [nps]
- Locator
- NRHP nomination Appendix 3 Table 1 (YMS-136 row); narrative sections pp. ~23-26 of the continuation sheets
- Finding type
- historical_record
- Finding
- The federal NRHP nomination for the builder's yard names this hull directly: Appendix 3 Table 1 lists 'YMS 136 - launching 2/8/43, delivery 3/19/43, date span of logbooks March 19, 1943-June 30, 1945 - Reclassified as Motor Minesweeper AMS-46, named EGRET, transferred to Brazil 1960.' The nomination documents the class and builder context: AMCCO's March 1942 contract covered eight minesweepers YMS-135 through YMS-142; the yard was expanded 1941-42 for YMS production and was the first yacht yard in the Northwest to receive a YMS commission (29 Aug 1942); a wood-hulled sweeper (the YMS) was introduced to counter sophisticated influence mines; 550 YMS-type vessels were built at 24 shipyards; YMS were 'the smallest of all minesweepers... two 500-horsepower diesel twin-screw engines powered these 136-foot ships.' AMCCO received the Army-Navy 'E' flag in 1944.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941-1945 (construction era)
- Population
- AMCCO construction workforce (yard crew >400 during wartime expansion per nomination; ~1,500 at 1943 peak per secondary accounts - see gaps)
- Limitations
- Yard-level federal documentation that happens to name this hull in its vessel table - the table row is ship-specific; the production narrative is class/yard context. No asbestos content anywhere in the 70-page nomination (verified by full-text search). Table OCR artifacts exist ('VMS' for 'YMS', minor date-order quirks) - dates corroborate NavSource.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-08
-
[10]Oregon Health Authority / ATSDR Health Consultation, Astoria Marine Construction Company, 92134 Front Road, Astoria, OR (EPA Facility ID 0R0002392793), August 12, 2016 [other_primary]
- Locator
- OHA/ATSDR Health Consultation AMCCO, Aug 2016 (70 pp.); contaminant conclusions pp. ~22-24
- Finding type
- environmental_record
- Finding
- A 70-page federal-state health consultation for this hull's builder's site evaluates soil, groundwater, and river-sediment contamination: heavy metals (antimony, arsenic, copper, lead), organotins (copper-based antifouling paints used until 1989), petroleum, PAHs, PCBs, dioxins, and pesticides - with worker-exposure dose calculations. Full-text search returns zero mentions of asbestos: asbestos is not identified among the contaminants evaluated for the AMCCO site.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 2016 (evaluation); site history back to 1922
- Population
- AMCCO site workers and nearby residents (evaluation scope)
- Limitations
- Yard-level environmental record, not a hull record: the consultation's scope is contaminant migration (burn pit, marine ways, in-water sediment), not historical building materials or materials installed aboard constructed vessels - absence of asbestos from its scope does not establish absence of asbestos in the wartime-built fleet or in yard buildings. Still, it is the one evaluated government environmental record for this yard and it does not flag asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-09
-
[11]Era inference built on: NPS NRHP nomination (wooden-hulled YMS type; two 500-hp diesel twin-screw engines; 550 built at 24 yards); NavSource specifications (GM 8-268A diesels, two shafts); GAO HRD-80-2 program-level finding that the Navy used asbestos insulation extensively aboard ships through the early 1970s [other_primary]
- Locator
- NPS NRHP nomination class narrative; NavSource spec block; GAO product page HRD-80-2
- Finding type
- asbestos_application
- Finding
- A wooden-hulled motor minesweeper built 1942-43 sits inside the Navy's documented asbestos-use era, but the type's design bounds the exposure pathways materially: diesel propulsion only - no boilers, turbines, or steam piping, so the boiler/turbine lagging pathway that dominates steam-vessel asbestos inventories does not exist on this type. Era-standard applications aboard a small wooden diesel craft of this period were limited to engine and exhaust-system lagging in the machinery space, gaskets and valve packing, and electrical insulation.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1969
- Population
- AMCCO construction trades (1942-43); crew (1943-45); Reserve training personnel (1947-59); Brazilian crew (1960-69)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located (the NARA guide's S39/RG 19 path is the untapped route to one). Names era-standard applications for the type, not confirmed installed materials; no quantity; no manufacturer attribution. The wooden-hull/diesel configuration makes this a materially weaker inference than for steam vessels. Does not establish exposure, causation, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-10
-
[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), WWII service, Reserve era (1947-59), and stricken year (1959).
- 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 or the YMS type. Full text not retrieved this session (gao.gov blocks automated fetch, HTTP 403 - consistent with prior batches); content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-11
-
[13]CourtListener API v4 search, q="USS Egret" type=o: single hit = Barcelo v. Brown (Romero-Barcelo v. Brown), 478 F. Supp. 646 (D.P.R. 1979), Civ. 78-323, 78-377 - the Vieques weapons-training / Clean Water Act ordnance-discharge case [court_record]
- Locator
- CourtListener opinion 1899585 (search hit 1 of 1, q="USS Egret", type=o, 2026-10-04); retained helper output cl-yms136-name-opinion.json
- Finding type
- litigation_documented
- Finding
- The only opinion-database hit for the exact ship name is non-qualifying: Barcelo v. Brown is the Vieques environmental litigation (Navy ordnance discharge into island waters; NPDES/NEPA). The 'Egret' match is a name-level collision - the egret seabird figures in Vieques environmental records, and in any event no USS Egret was in U.S. service in 1979 (this hull had been Brazilian Jutai since 1960). Not asbestos litigation; not a finding about this hull.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1979 (opinion)
- Limitations
- Name collision only - classified as non-qualifying other litigation. The token context inside the opinion text was not independently pulled (fleet pacing budget); classification rests on the case's conclusively non-asbestos subject matter and the timeline impossibility of a USS Egret reference meaning this hull in 1979.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-12
-
[14]Designation/date cross-check: NHHC DANFS Egret II page (named 19 Aug 1947); NavSource + NavalCoverMuseum (reclassified AMS-46 and named 1 Sep 1947); Haze Gray DANFS transcription (MSC(O)-55); NavSource specs (270 t, 15 kts, 8' draft, cpl 32) vs Wikipedia infobox (320 t, 13 kts, 6'1" draft, cpl 33) [other_primary]
- Locator
- hazegray.org DANFS transcription via losthistory.net/hazegray/danfs/mine/yms136.htm; navsource.net/archives/11/19136.htm; navalcovermuseum.org/wiki/EGRET_MSC(O)_46; en.wikipedia.org/wiki/USS_YMS-136
- Finding type
- historical_record
- Finding
- CORRECTION/CONFLICT NOTES: (1) The Haze Gray DANFS transcriber's note for this entry reads 'MSC(O)-55' - a transcription typo; DANFS-consistent sources, NavSource, and NavalCoverMuseum all give MSC(O)-46. (2) Naming vs reclassification dates conflict: DANFS says YMS-136 'was named Egret 19 August 1947,' while NavSource and NavalCoverMuseum date the AMS-46 reclassification and naming 1 September 1947 - the two dates likely reflect the naming action vs the designation effective date, but they are recorded as an unresolved conflict. (3) Spec figures conflict between NavSource (270 t / 15 kts / 8' draft / complement 32 / 'two 1,000shp' GM 8-268A) and the Wikipedia infobox (320 t / 13 kts / 6'1" draft / complement 33); the NRHP nomination's 'two 500-horsepower diesel twin-screw engines' is the class-consistent figure. NavSource values are carried; conflicts are in gaps.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1947-1955 (designation window)
- Limitations
- Corrects designation transcription errors and logs milestone/spec conflicts - does not resolve them against a primary register. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-13
-
[15]Batch-8815 search ledger (this record): NHHC DANFS live page; NavSource hull page + plank-owner document PDFs; NARA Special List 44 (NARA-hosted index PDF + bound-volume scan); NARA digitized deck-log index; NARA asbestos research guide; NPS NRHP nomination + HAER OR-181; OHA/ATSDR health consultation; NVR; NavalCoverMuseum; CourtListener (partial - pacing); secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-136-yms136-01 through -15
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, material specification, engineering drawing, Bureau of Ships correspondence, or verified litigation naming USS YMS-136 / Egret / AMS-46 / MSC(O)-46 was found in the public sources searched (see search_ledger). Ship-specific asbestos status is unknown. CAVEAT: CourtListener was only partially searched this session - 'USS Egret' opinion (count=1, non-qualifying Barcelo collision) and 'USS Egret' docket (count=186 loose-token matches, all 20 page-1 hits non-qualifying) completed; 'YMS-136' opinion, 'YMS-136' docket, and the permitted 'USS Egret' asbestos docket variant remain pacing-blocked (exit 2); logged as blocked, not as negative results.
- 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 - and the litigation-repository search is a genuine open gap (2 of 4 base queries plus the overflow-permitted asbestos variant not run). NARA identifies undigitized RG 19/RG 143 research paths and neither those files nor the deck logs were examined at page level. The wooden-hull/diesel design bounds what asbestos inference is even plausible for this type. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-136-yms136-14