Evidence
13 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-13).
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[1]research packet 1074-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-60-yms60-pkt-1074-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-60 page - construction timeline, specifications, disposal (verified live 2026-10-05; note: navsource.org is dead, navsource.net is the live domain) [other_primary]
- Locator
- NavSource 11/19060.htm header block and specifications block; sole image credited to Joseph Lafo from Oregon Historical Society archives
- Finding type
- vessel_history
- Finding
- Documented for this hull: YMS-1 Class Auxiliary Motor Minesweeper; laid down 19 September 1941 by the Gibbs Gas Engine Co., Jacksonville, FL; launched 19 January 1942; completed 2 May 1942; struck from the Naval Register 10 June 1947; transferred to the War Shipping Administration March 1948; scrapped in 1951 by Zidell, Portland, OR. Call sign Nan-Easy-Zebra-Able. Spec block: 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 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Page states 'There is no DANFS history available for YMS-60' and carries a c.1951 Oregon Historical Society photograph of the hull at Zidell Shipbreakers, Portland, OR.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1951
- Population
- Gibbs Gas Engine Co. construction trades (1941-42); crew (1942-46)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track official registers but the page cites no underlying document for this hull. 'Completed' vs 'commissioned' terminology for small craft varies across sources. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-01
-
[3]uboat.net Allied Warships of WWII, USS YMS-60 (YMS-60) page - construction data and milestone dates (verified live 2026-10-05) [other_primary]
- Locator
- uboat.net ship page 9477, construction table and history line
- Finding type
- vessel_history
- Finding
- Documented for this hull: ordered 1 April 1941; laid down 19 September 1941 by Gibbs Gas Engine Co. (Jacksonville, Florida); launched 19 January 1942; commissioned 2 May 1942; stricken 10 June 1947. No commanding officers and no notable events are listed for the hull on the site.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Limitations
- uboat.net is an editor-curated warship database, not a primary registry; dates agree with NavSource. 'Commissioned' here vs 'completed' at NavSource - terminology for small craft varies. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-02
-
[4]National Archives, Special List 44: List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 - by ship number (YMS-60 entry) [other_primary]
- Locator
- Special List 44 ship-number PDF, YMS-60 line: 'YMS-60 5/19/1942 8/31/1945' (live download verified 2026-10-05)
- Finding type
- vessel_history
- Finding
- NARA Special List 44, the List of Logbooks of the United States Navy, 1941-1945, by Ship Number, lists YMS-60 with logbook coverage beginning 19 May 1942 and ending 31 August 1945 - documenting Navy service within the 1930-1986 exposure window. The coverage start falls 17 days after the 2 May 1942 completion date, consistent with entry into service; the coverage end coincides with the end of WWII deck-log filing for the craft, not a decommissioning or disposal date.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1942-1945
- Population
- crew (1942-45)
- Limitations
- A logbook index is a history locator, not a commissioning order or material record - the date range is logbook coverage, not proven commission/decommission dates (per batch discipline: coverage dates are not asserted as commissioning dates). Does not establish asbestos presence, products, quantity, individual exposure, causation, or legal eligibility. The underlying deck logs for YMS-60 are not individually cataloged as digitized items in the National Archives Catalog; the logs are held at Archives II.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-03
-
[5]NARA, RG 24 Muster Rolls, file unit 'YMS-60, 5/10/42-3/31/46' (NAID 193212607), Ancestry-partnered scan set 32863_256087 (223 images) - forwarding sheets, quarterly recapitulations, and monthly change reports image-verified 2026-10-05 [other_primary]
- Locator
- NAID 193212607, digitized images: cover sheet (roll span note), Q2-1942 forwarding sheet (Norfolk Navy Yard), Q3-1942 forwarding sheet (Ordnance Island, Bermuda), Jan-1943 roll (enlistment at Ordnance Island), 29-Jul-1943 missing-information memo (Melville/Memphis/Winslow/NOF-120 exchanges), Dec-1943 report (Guantanamo-to-Miami), Q4-1943 forwarding sheet (Portsmouth, VA), Jun-1945 changes (Norfolk/Little Creek), Oct-1945 forwarding sheet (Newport Beach, CA), Feb-1946 changes (Gwin DM-33), Q1-1946 recapitulation (27 carried forward)
- Finding type
- vessel_history
- Finding
- NARA-digitized muster rolls for YMS-60 (RG 24, 'Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities', NAID 193212607, 223 images, catalog span 5/10/42-3/31/46; series cover sheet hand-noted '5-19-42 to 3-31-46 Final') document this hull's stations and crew across the war. Image-verified entries: quarter ending 30 June 1942 forwarded from Navy Yard, Norfolk, VA; quarter ending 30 September 1942 forwarded from Ordnance Island, Bermuda; a January 1943 roll records a crewman enlisted 21 October 1942 at Ordnance Island, Bermuda; a 29 July 1943 memo itemizes May-June 1943 personnel exchanges with USS Melville, USS Memphis, USS Winslow, and U.S. Naval Operating Facility No. 120 (a Fourth Fleet / South Atlantic cluster consistent with Recife, Brazil - Melville and Memphis were Fourth Fleet ships at Recife in 1943); the December 1943 change report logs sailing from Guantanamo Bay, Cuba, to Miami, Florida; the quarter ending 31 December 1943 was forwarded from Portsmouth, VA; June 1945 changes record transfers to Naval Hospital NOB Norfolk, Receiving Station South Annex Norfolk, and the Minecraft Training Center, Little Creek, VA; an October 1945 forwarding sheet was sent from Newport Beach, CA; February 1946 changes show demobilization transfers incl. one man to USS Gwin (DM-33) for further transfer to a separation center; final recapitulation quarter ending 31 March 1946 carried 27 men forward (29 on board during the quarter).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1942-1946
- Population
- ship's crew, ~27-34 men aboard 1943-46 per sampled recapitulations
- Limitations
- Personnel records - they fix the hull's stations and crew counts but contain no asbestos, material, or condition information and do not describe operations. The Recife assignment is an inference from the Melville/Memphis/Winslow/NOF-120 cluster plus war-diary index hits, not a stated station on the sampled sheets. Twelve of 223 pages were sampled; unexamined pages may hold additional stations. 'Completed' muster-roll catalog title (5/10/42) vs cover-sheet note (5-19-42) start-date variance is unresolved; the Special List 44 deck-log start (5/19/42) matches the cover sheet.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-04
-
[6]Composition of Task Forces - December 2, 1942 (U.S. Navy; Franklin D. Roosevelt Library Map Room file scan, mr0659.pdf, p. 11 of document) [other_primary]
- Locator
- Document page 11 (PDF page 11): Task Force 26 chart, group '26.5' Bermuda Group block - YMS-60 listed among Bermuda-assigned craft
- Finding type
- historical_record
- Finding
- A wartime U.S. Navy organization document - 'Composition of Task Forces, December 2, 1942' from the Roosevelt Library Map Room files - places YMS-60 in the Bermuda Group (Task Group 26.5) under the Commandant, Naval Operating Base Bermuda, listed with R-1, R-7, YMS-44, YMS-45, YMS-76, Marabout, Jacamar, and SC boats. This is primary-source corroboration of the Bermuda assignment fixed by the muster-roll forwarding sheets.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- December 1942
- Population
- ship's crew (~30) at Bermuda assignment
- Limitations
- Organization chart fixes assignment as of 2 December 1942 only; it does not describe operations or material condition and contains no asbestos information. Scan OCR of the document is degraded; the YMS-60 entry was confirmed against the rendered page image.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-05
-
[7]National Archives Catalog war-diary file units matching 'YMS-60' in extracted text: COMSERRON 5 (Feb-Nov 1943), USS MELVILLE (Mar-Aug 1943), COMSOLANTFOR (Feb 1943; Jun 1945), COM 4TH FLEET (Mar-Apr 1944; Mar 1945), and others - catalog search hits, Fold3 microfilm scans [other_primary]
- Locator
- catalog.archives.gov search '"YMS-60"' result set: e.g. NAID 134094039 (COMSERRON 5, 2/1-28/43), 134217526 (USS MELVILLE, 5/1-31/43), 78583067 (COMSERVRON 5, 7/1-31/44), 101761060 (COMSOLANTFOR, 6/1-30/45)
- Finding type
- historical_record
- Finding
- The National Archives Catalog's full-text index matches 'YMS-60' inside WWII war-diary scans including Commander Service Squadron FIVE (COMSERRON 5) war diaries for Feb-Nov 1943 (e.g., NAID 134094039, Feb 1943, Fold3 microfilm roll A238), USS Melville war diaries for Mar-Aug 1943, ComSoLantFor war diaries (1943/1945), and Commander Fourth Fleet war diaries (1944/1945) - a South Atlantic / Fourth Fleet documentary trail consistent with the personnel-exchange cluster in this hull's muster rolls.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1943-1945 (diary periods)
- Limitations
- These are catalog OCR-index hits on microfilm-scan war diaries; the underlying diary pages were not individually read this session - the match confirms the string 'YMS-60' appears in the scans but the operational context is unexamined. A hit could conceivably be an OCR artifact or an index/roster mention rather than operational assignment. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-06
-
[8]Shipbuilding History (Colton), 'Gibbs Gas Engine, Aerojet-General, Jacksonville Shipyards' production table - YMS-60 row and yard history [other_primary]
- Locator
- Gibbs yard table, YMS-60 row: 'Minesweeper | 278d | 136 | 2-May-42 | Struck 1947'
- Finding type
- vessel_history
- Finding
- Yard-table documentation for this hull: the Gibbs Gas Engine Co. (Jacksonville, FL) production table lists YMS-60, US Navy minesweeper, 278 LDT / 136 ft, completed/delivered 2 May 1942, struck 1947 - matching the NavSource timeline. Gibbs built the contiguous block YMS-54 through YMS-65 (and later YMS-346+ / YMS-464+ blocks) for the Navy.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Population
- Gibbs Gas Engine construction trades (1941-42)
- Limitations
- Reputable secondary yard-history compilation (Colton's Shipbuilding History), not a primary contract record; dates concur with NavSource/uboat.net. Displacement figure variant (278 LDT here vs 270 t. NavSource). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-07
-
[9]Navypedia, 'YMS motor minesweepers (YMS-1) (1942-1945)' class page - hull disposition table and class construction notes (verified live 2026-10-05) [other_primary]
- Locator
- Navypedia YMS page: YMS60 disposition row; class 'Technical data' block (270 t standard / 320 t full; 2 diesels; 800 hp; 14 kts) and wooden-hull construction note
- Finding type
- vessel_history
- Finding
- Corroborating secondary listing for this hull: 'YMS60 - Gibbs Gas Engine, Jacksonville - 9.1941 (ordered/contract block), 19.1.1942 (launched), 5.1942 (completed), stricken 6.1947' - consistent with NavSource/uboat.net. The class page notes wood was chosen as the hull construction material and documents the class's twin-diesel machinery and magnetic-sweep diesel-generator fit.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Limitations
- Secondary reference compilation; wooden-hull and diesel-plant statements are class-level descriptions, not hull-specific surveys. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-08
-
[10]Navy and Marine Corps Awards Manual, NAVPERS 15,790 (Rev. 1953), Part II - Navy Unit Commendation unit list, Task Unit 78.2.9 (NHHC online reading room); cross-checked against the 1948 Decorations volume page scan (Internet Archive identifier DecorationsMedalsRibbonsBadges1948, page leaf 0022) [nhhc_danfs]
- Locator
- NHHC awards page, NUC table, 'Task Unit 78.2.9 ... 15 Jun-1 Jul 45 - Balikpapan, Borneo, Netherlands East Indies' - 24-ship list contains YMS-50, not YMS-60; 1948 volume page 22 scan (p.15 of the commendation section) verified against its OCR text layer
- Finding type
- historical_record
- Finding
- No unit commendation for this hull: the Internet Archive's OCR of 'Decorations, Medals, Ribbons, Badges of the United States Navy (1948)' surfaces a 'U.S.S. YMS-60' line inside the Navy Unit Commendation list for Task Unit 78.2.9 (Balikpapan, 15 June-1 July 1945). Inspection of the scanned page image shows the printed entry is 'U.S.S. YMS-50' - an OCR misread (5 read as 6; the same page misreads YMS-39 as 'YMS-89', YMS-53 as 'YMS-63', YMS-392 as 'YMS-S9S', etc.). The authoritative NHHC transcription of NAVPERS 15,790 (Rev. 1953), Part II unit-awards table, lists TU 78.2.9's 24 ships for 'Balikpapan, Borneo, Netherlands East Indies' with YMS-50 and no YMS-60. No Navy Unit Commendation, Presidential Unit Citation, or other unit award naming YMS-60 was located; the hull's documented service was Atlantic/Caribbean, not the Balikpapan operation.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1945 (operation); 1948-1953 (award lists)
- Limitations
- Establishes the absence of the TU 78.2.9 Navy Unit Commendation for this hull and corrects a likely-looking OCR false positive that could otherwise propagate into a fabricated award. Does not rule out unlisted individual awards or campaign stars - no award register entry for the hull was located. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-09
-
[11]Era inference built on: NavSource spec block (twin GM 8-268A diesels, no steam plant); Navypedia class notes (wooden hull; diesel-generator for magnetic sweep); shipbuildinghistory class table (278 LDT motor minesweeper); GAO HRD-80-2 Navy-wide asbestos documentation (ev-11) [other_primary]
- Locator
- NavSource spec block; Navypedia class notes; shipbuildinghistory Gibbs table; GAO HRD-80-2
- Finding type
- asbestos_application
- Finding
- A wooden-hulled diesel-driven motor minesweeper completed May 1942 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a small diesel craft of this period were diesel exhaust lagging, machinery-space insulation, gaskets and valve packing, and electrical insulation in the confined machinery compartment. As a diesel vessel she carried no boilers or turbines - the steam-plant lagging pathway does not apply - and wooden-hull construction narrowed the structural fireproofing scope relative to steel combatants, though auxiliary propulsion and electrical systems still followed era Navy practice.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1941-1951
- Population
- Gibbs Gas Engine construction trades (1941-42); crew (1942-46); Zidell shipbreakers, Portland OR (1951)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or yard record located for YMS-60. Names era-standard applications, not confirmed installed materials. No quantity. No manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-10
-
[12]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 highlights (verified live 2026-10-05)
- 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 Navy service era (1942-47).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1979 (report); WWII-1970s (practice window)
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Report fieldwork centered on Long Beach and Norfolk Naval Shipyards in the 1970s - a different venue and era from this 1942 wooden diesel craft; the inference chain runs through general Navy practice, not a class survey. Full PDF not parsed this session - content via product-page highlights.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-11
-
[13]Batch-9141 search ledger (this record): NARA Special List 44 PDF (live-verified); NARA muster rolls NAID 193212607 (223 images, sampled); FDR Library Map Room task-force chart; NHHC NAVPERS 15,790 awards list; NavSource; uboat.net; Navypedia; shipbuildinghistory; sixtant.net (Recife 4th Fleet index); MARAD ShipHistory; NVR; CourtListener API v4 (authenticated, fleet-paced) [other_primary]
- Locator
- search_ledger rows sl-uss-yms-60-yms60-01 through -13
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS YMS-60 was found in the public sources searched. NHHC maintains no DANFS entry (NavSource page concurs - 'There is no DANFS history available for YMS-60'). The Naval Vessel Register carries no record (disposed 1951, outside NVR's post-1987 coverage window). MARAD ShipHistory index returns no vessel record (WSA disposal custodies of naval combatant craft are not in the merchant-hull database). CourtListener: see search_ledger for the four prescribed authenticated base queries and their run status.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 2026-10-05
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - a 1942-built diesel craft is era-consistent with modest asbestos applications. Deck logs (RG 24, coverage 5/19/1942-8/31/1945 per Special List 44) and the South Atlantic war-diary scans are undigitized/unexamined leads that could contain material-level references. Does not establish or defeat any exposure claim or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-60-yms60-12