Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
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[1]research packet 1096-packet.md (1 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-mercedes-yt108-pkt-1096-packet-md
-
[2]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, 'Mercedes (YT-108)' [nhhc_danfs]
- Locator
- DANFS entry, full text (live page returns HTTP 404 as of 2026-10-05 - standing NHHC link-rot defect also noted in BATCH-01/BATCH-98/BATCH-9499; text verified via Wayback capture dated 2020-03-30: https://web.archive.org/web/20200330044309/https://www.history.navy.mil/research/histories/ship-histories/danfs/m/mercedes.html)
- Finding type
- vessel_history
- Finding
- DANFS entry for Mercedes (YT-108), dimensions 'l. 53'6"; b. 9'2"; dr. 3'10"', namesake 'a former Spanish name retained': 'Mercedes (YT-108), a wooden yard tug, was built by the Spanish in the Philippines; captured by the Navy at Cavite in May 1898; turned over to customs authorities shortly after the Spanish-American War; and returned to the Navy 15 November 1902. For the next 40 years, Mercedes was assigned to the 16th Naval District, operating in and around the naval stations at Cavite and Olongapo in the Philippines, at times serving as yard ferry, but most often serving ships of the Asiatic Fleet as a tugboat. Mercedes was sunk by friendly forces to prevent her capture by the Japanese during their attack on Cavite 2 January 1942.'
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1898-1942
- Limitations
- Authoritative for identity, capture, custody history, station, and loss. The entry is short and gives no commissioning/decommissioning dates, no complement or propulsion particulars beyond the dimension block, and no strike date. Contains no asbestos, materials, or condition information; supports no asbestos claim.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-01
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[3]Robert J. Cressman (Contemporary History Branch, Naval Historical Center), The Official Chronology of the U.S. Navy in World War II, 1942 chapter - 2 January and 6 May entries (HyperWar/ibiblio transcription of the Naval Institute Press edition) [nhhc_danfs]
- Locator
- 1942 chapter: 'January 2, Fri. Pacific Manila and Cavite, P.I., fall to the Japanese'; and 'May 6, Wed. ... Lost to Japanese occupation of the Philippines are ... harbor tugs Banaag (YT-104), Iona (YT-107), and Mercedes (YT-108)'
- Finding type
- vessel_history
- Finding
- The Naval Historical Center's published Official Chronology of the U.S. Navy in World War II (Cressman, 2000) records 'Manila and Cavite, P.I., fall to the Japanese' under 2 January 1942, and under its 6 May 1942 entry (fall of Corregidor) enumerates 'harbor tugs Banaag (YT-104), Iona (YT-107), and Mercedes (YT-108)' in a lengthy list of district patrol craft, lighters, derricks, ferry launches, barges, and pontoons 'lost to Japanese occupation of the Philippines.' This is an official Navy history naming this hull by hull number among the Philippine district-craft losses.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-12 to 1942-05
- Limitations
- Official Naval Historical Center publication corroborating this hull's loss in the Philippine campaign. The chronology lists YT-108 under the 6 May 1942 catch-all enumeration of craft lost across the whole campaign, not as a claim she survived until May - DANFS's 2 January 1942 scuttle date is adopted as controlling (see gaps). The chronology records no asbestos, materials, or exposure information. Cited via the HyperWar/ibiblio transcription; the NHHC's own hosted chronology URL returned HTTP 404 on 2026-10-05.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-02
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[4]NavSource Online: Service Ship Photo Archive, Mercedes (YT-108) [other_primary]
- Locator
- Page header timeline block and specifications table (page confirmed live at navsource.net 2026-10-05; the dead navsource.org domain was not used)
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: 'A wooden-hulled tug built by Spain in the Philippines, date unknown; Launched, date unknown; Captured at Cavite Navy Yard, in May 1898; Turned over to the Customs Service; Returned to Navy custody, 15 November 1902; Placed in service as Mercedes (date unknown) at Navy Yard Cavite P.I.; Designated District Harbor Tug YT-108, 17 July 1920'; WWII campaign 'Philippine Islands operation, 8 December 1941 to 2 January 1942'; 'Final Disposition, sunk by friendly fire, 2 January 1942, to prevent capture by the Japanese; Struck from the Naval Register, date unknown'; one battle star for WWII service. Ribbons: American Defense Service Medal, Asiatic-Pacific Campaign Medal, World War II Victory Medal, Philippine Defense Medal. Specifications: displacement unknown; length 53'6"; beam 9'2"; draft 3'10"; speed unknown; complement unknown; armament unknown; propulsion 'steam, single screw.' No images of this hull exist in the NavSource archive.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1898-1942
- Limitations
- NavSource is a volunteer photo-archive compilation, not a government registry; its timeline agrees with DANFS on all overlapping facts and adds the YT-108 designation date, campaign dates, ribbons, and spec block. Speed, displacement, complement, and armament are all 'unknown' in its own spec table - no figures are asserted anywhere in this record. No asbestos or materials content; supports no asbestos claim.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-03
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[5]Shipscribe, U.S. Naval Auxiliaries, 'Harbor Tugs: Photo Gallery - Spanish-American War acquisitions, 1898' (YT 12-27, 102-108) [other_primary]
- Locator
- 'Late Additions, 1898-1911 (YT 102-108)' notes block; type index at https://usnaux.shipscribe.com/YT/YTtype.html
- Finding type
- historical_record
- Finding
- Shipscribe/USNAUX (U.S. Naval Auxiliaries reference compilation), YT type index 'Spanish-American War acquisitions' photo-gallery page: 'Four of the tugs in this group, Balanga (YT-103), Barcelo (YT-105), Iona (YT-107), and Mercedes (YT-108), were captured with the Cavite Navy Yard in 1898.' This independently corroborates the 1898 Cavite capture and places this hull in the YT-102-108 administrative group of late-acquired 1898-1911 yard tugs.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1898-1920
- Limitations
- Group-level note naming this hull; corroborates the 1898 capture and the prize-tug grouping. Shipscribe's YT data-table pages currently cover YT 1-101 and 117+ only - no per-hull data row for YT-108 exists on the site yet, so no specs are taken from it. No asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-04
-
[6]U.S. Navy, Navy Filing Manual, 1941 edition, section YA-YY (District Craft) hull list (HyperWar/ibiblio transcription) [other_primary]
- Locator
- YA-YY district-craft list, YT series block: 'YT104 Banaag. YT106 Christine (stricken). YT107 Iona. YT108 Mercedes.'
- Finding type
- historical_record
- Finding
- The Navy Filing Manual (1941), an official U.S. Navy nomenclature/reference document, lists 'YT108 Mercedes' in its district-craft (YA-YY) hull list without the '(stricken)' annotation applied to deleted hulls in the same list - consistent with the tug still being on the Naval Register as of the manual's compilation, corroborating her YT-108 designation and in-service status on the eve of the war.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941
- Limitations
- Primary Navy document corroborating hull designation and register status circa 1941; the manual's annotation convention (a '(stricken)' tag on deleted hulls) supports but does not prove an exact status date - supplement printings could lag events. Contains no materials or asbestos content; supports no asbestos claim.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-05
-
[7]Era inference built on the vessel's own documented characteristics (wooden hull, steam propulsion, pre-1898 construction, Cavite Navy Yard station - DANFS/NavSource) cross-referenced against general shipbuilding-era materials practice for steam auxiliaries. [other_primary]
- Locator
- vessel characteristic rows ev-01 through ev-05 (wooden hull; steam, single screw; pre-1898 construction; continuous yard service to 1942)
- Finding type
- asbestos_application
- Finding
- Class/era inference only: Mercedes was a wooden-hulled, steam-powered yard tug of pre-1898 Spanish Philippine construction, in continuous Navy yard service at Cavite Navy Yard through 2 January 1942 - a steam plant and era in which boiler lagging, steam-pipe covering, machinery gaskets, and packing were commonly asbestos-containing. No insulation survey, repair work order, or materials list naming this hull was located.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1898-1942
- Population
- Cavite Navy Yard station complement and transient tug crews (1902-1942)
- Limitations
- Era inference only - this is a weaker inference than for most hulls in the dataset: she was built under Spanish colonial-era Philippine yard practice (not U.S. Navy specification), her exact construction date is unknown, and steam auxiliaries of her small size carried far less lagged surface than warships. Names era-standard applications, not confirmed installed materials, quantity, or condition. The hull was lost in 1942; no physical survey is possible. Does not establish individual exposure or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-06
-
[8]Batch-9293 search ledger (this record) [other_primary]
- Locator
- search_ledger rows sl-uss-mercedes-yt108-07 through sl-uss-mercedes-yt108-10d
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no insulation survey, abatement record, hazmat disclosure, or verified litigation naming USS Mercedes (YT-108) was found in the public sources searched. All four required CourtListener base queries were run: every one overflowed its 20-result page on pure name/alphanumeric-collision noise ('Mercedes' 13,268 opinion and 67,303 docket hits - criminal defendants, civil parties, debtors, and Mercedes-Benz automotive litigation; 'YT-108' 132 opinion and 10,872 docket hits - unrelated cases where the string matches a docket number, exhibit, or citation substring). All four triggered asbestos-qualified variants were then run: 'Mercedes' asbestos returned 182 opinion hits (genuine asbestos cases with incidental 'Mercedes' text matches plus Mercedes-Benz matters) and 1,574 docket hits (overwhelmingly Mercedes-Benz automotive dockets) - none vessel-related; 'YT-108' asbestos returned 9 opinion hits (Texas appellate construction/corporate cases and one Second Circuit campaign-finance case, all incidental text co-occurrences) and 1,172 docket hits (major asbestos-defendant dockets including MDL-875, Federal-Mogul, W.R. Grace, Kaiser Gypsum, and J&J talc where 'YT-108' is an incidental substring match) - none vessel-related. General web sweeps surfaced no law-firm or news source naming this specific hull in an asbestos context.
- 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 pre-1898 steam tug in 40 years of yard service is era-consistent with asbestos-containing materials having been present or applied during upkeep. Does not establish presence or absence, quantity, or any individual's exposure or legal eligibility. The hull was lost in 1942, so no physical survey is possible.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-07
-
[9]NARA Guide to Federal Records: RG 181 (Records of Naval Districts and Shore Establishments) and RG 19 (Records of the Bureau of Ships) [other_primary]
- Locator
- RG 181 record-group description (16th Naval District, Cavite); https://www.archives.gov/research/guide-fed-records/groups/019.html
- Finding type
- historical_record
- Finding
- Archival leads (not retrieved - require research-room or reproduction order; no spend authorized): NARA RG 181 (Records of Naval Districts and Shore Establishments) holds 16th Naval District records including Cavite Navy Yard material; the Commandant's correspondence, station logs, and the yard's craft/ferry records are the plausible repository for any Mercedes-specific work, crew, or loss documentation. RG 19 (Bureau of Ships) holds hull/ship-history and YT-classification files. Spanish-era construction documentation for a Philippine-built yard tug is unlikely to exist in U.S. custody. NHHC photo catalog: no image of this hull was located (NavSource likewise holds none).
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-05
- Study period
- 1898-1942 records
- Limitations
- Record-group mapping only - no box-level retrieval performed; whether any Mercedes-specific file, work order, or materials record exists is unknown until surveyed in person. Nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-08
-
[10]U.S. General Accounting Office, report HRD-80-2 (product page) [gao]
- Locator
- gao.gov product page for HRD-80-2
- Finding type
- historical_record
- Finding
- GAO report HRD-80-2 (program-level review of Navy asbestos-exposure and removal policy, circa 1980) is a known lead for Navy-wide asbestos-era program context but could not be retrieved this session.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-05
- Study period
- circa 1980
- Limitations
- gao.gov returned HTTP 403 to automated fetch on 2026-10-05 (standing defect noted in prior batches, e.g. BATCH-01/BATCH-98/BATCH-9499). Full text not reached; nothing from this report is asserted as fact in this record. Program-level even if retrieved - would not become a hull-specific finding for a 1942-loss harbor tug.
- Atlas source
- true
- Evidence ID
- ev-uss-mercedes-yt108-09