Evidence
9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).
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[1]research packet 878-packet.md (3 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-port-clinton-pc1242-pkt-878-packet-md
-
[2]DANFS, Port Clinton (PC-1242) - construction, delivery/commissioning, service narrative, decommissioning, naming, striking (live NHHC page, verified 2026-10-03) [nhhc_danfs]
- Locator
- DANFS entry 'Port Clinton', spec block + full service narrative
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: 'a steel-hulled submarine chaser, was laid down 22 September 1942 by Nashville Bridge Co., Nashville, Tenn. as PC-1242; launched 25 January 1943; completed 27 January 1943; delivered to the Navy at New Orleans, La. 8 July 1943; and commissioned there 12 July 1943.' Shakedown out of Key West 30 July-31 August 1943; convoy escort, patrol, and training between Galveston, Key West, and Guantanamo Bay through fall 1943; New Orleans call 10-15 December 1943, then Panama Canal transit to Bora Bora (arrived 26 February 1944); Pacific patrol/escort between Bora Bora, Tutuila (Samoa), Funafuti (Ellice Islands), and Milne Bay (New Guinea); post-hostilities minesweeping in Japanese home waters through November 1945 and further minesweeping/occupation patrols; laid up Columbia River Group, Pacific Reserve Fleet; decommissioned 1 January 1947; 'Named Port Clinton 1 February 1956'; sold to Pacific Diesel Co.; struck from the Navy List 1 December 1959. Spec block: 'PC-1242: dp. 374; l. 169-7-; b. 20-9-; dr. 8-7-; s. 20 k.; cpl. 80; a. 1 40mm., 5 20mm., 2 dcp., 2 dct., 2 rkt.; cl. PC-553.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1959
- Population
- Nashville Bridge construction trades (1942-43); wartime crew (1943-45); occupation-duty crew (1945-47)
- Limitations
- Ship-specific history only; no asbestos or material content. 'Completed 27 January 1943' (two days after launch) reads oddly against a July delivery but is carried verbatim. DANFS spec block diverges from NavSource on displacement (374 vs 450 t), dimensions, complement (80 vs 65), class designation (PC-553 vs 'PC-663 Class' header / PC-461 group), and omits the 3"/50 mount NavSource lists - conflicts carried in gaps. Naming date here (1 Feb 1956) conflicts with NavSource (15 Feb 1956) - unresolved.
- Atlas source
- true
- Evidence ID
- ev-uss-port-clinton-pc1242-01
-
[3]NHHC photograph NH 86363, 'USS PC-1242 (later: PORT CLINTON)' (live NHHC page, verified 2026-10-03) [nhhc_danfs]
- Locator
- NHHC photo catalog page, NH 86363 caption block
- Finding type
- vessel_history
- Finding
- NHHC catalog record and caption for official U.S. Navy photo NH 86363: 'Off the Nashville Bridge Co. Shipyard, Nashville, Tennessee, 25 June 1943. Courtesy of Ted Stone, 1977.' Documents this hull at her builder's yard shortly before her 12 July 1943 commissioning at New Orleans.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-06-25
- Population
- Nashville Bridge yard trades (June 1943)
- Limitations
- Physical-presence documentation only - establishes the hull at the builder's yard on that date; not a work record, not material content. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-port-clinton-pc1242-02
-
[4]NavSource Online: Submarine Chaser Photo Archive, Port Clinton (PC-1242) ex-PC-1242 - timeline, specifications, armament, CO, disposal (live page, verified 2026-10-03) [other_primary]
- Locator
- NavSource 12/011242.htm header block, specifications block, CO table
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: laid down 22 September 1942 at Nashville Bridge Co., Nashville, TN; launched 25 January 1943; commissioned USS PC-1242 12 July 1943 at New Orleans, LA; decommissioned 1 January 1947; laid up Pacific Reserve Fleet, Columbia River Group; named Port Clinton 15 February 1956; struck from the Naval Register 1 December 1959; sold to the Pacific Diesel Co.; 'Fate unknown.' Specifications: 450 t., 173'8" x 23', draft 10'10", 20.2 kts, complement 65; armament one 3"/50 dual-purpose mount, one 40mm, five 20mm, two depth-charge projectors, two depth-charge tracks, two rocket launchers; propulsion two 1,440 bhp General Motors 16-258S diesels (serials 10880, 10882), Farrel-Birmingham single-reduction gear, two shafts. Commanding officer listed: LTJG G. J. O'Conner, USNR, 1945. Call sign November-Charlie-Uniform-Alpha.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1959
- Population
- Nashville Bridge construction trades (1942-43); crew (1943-47); reserve-fleet caretakers (1947-59); Pacific Diesel Co. post-sale handlers (1959-60)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track DANFS but three conflicts exist (naming date, complement, class header 'PC-663 Class' vs DANFS 'PC-553'; see gaps). 'Fate unknown' means no disposal record after the Pacific Diesel Co. sale was located. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-port-clinton-pc1242-03
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[5]ShipbuildingHistory.com (Colton yard tables), NABRICO Nashville Bridge self-propelled construction list; plus uboat.net Allied Warships entry USS PC-1242 (ship 8769) [other_primary]
- Locator
- shipbuildinghistory.com NABRICO table row 'PC 1242'; uboat.net/allies/warships/ship/8769.html data block and commands table
- Finding type
- vessel_history
- Finding
- Secondary compilations corroborating this hull's build and fate: the Colton NABRICO table lists 'PC 1242 | US Navy | Sub Chaser | 463 | 110 | 12-Jul-43 | Named Port Clinton 1956, sold 1959' among Nashville Bridge Co. output. uboat.net entry: built by Nashville Bridge Co.; ordered 27 February 1942; laid down 22 September 1942; launched 25 January 1943; commissioned 12 July 1943; end service 1 January 1947; stricken 1 December 1959; PC-461 class; wartime CO sequence Charles Francis Wilson USNR (12 Jul 1943-late 1943), J. H. Bloch USNR, C. J. Collini USNR, G. O. O'Conner USNR (to mid/late 1945), R. W. Sharp USNR (to early 1946).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1959
- Population
- Nashville Bridge construction trades (1942-43); wartime crew under five listed COs (1943-46)
- Limitations
- Both are reputable secondary compilations, not primary records - used for corroboration (order date, CO sequence) not available in DANFS/NavSource. CO initials conflict slightly with NavSource ('G. O.' vs 'G. J.' O'Conner) - carried in gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-port-clinton-pc1242-04
-
[6]Era inference built on: NavSource specifications (steel-hulled diesel patrol craft, GM 16-258S x2); DANFS service narrative (construction 1942-43, service 1943-47, reserve 1947-59); GAO HRD-80-2 Navy asbestos-use era (see ev-06) [other_primary]
- Locator
- NavSource specifications block; DANFS narrative; GAO HRD-80-2 (ev-06)
- Finding type
- asbestos_application
- Finding
- A steel-hulled diesel-powered patrol craft built 1942-43 for wartime Navy service sits inside the documented Navy asbestos-use era; era-standard applications aboard a small combatant of this type and period were thermal insulation, machinery and diesel-exhaust lagging, gaskets, valve packing, and electrical insulation in confined engineering spaces. As a diesel craft she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1959
- Population
- Nashville Bridge construction trades (1942-43); crew (1943-47); reserve-fleet maintenance/caretakers (1947-59); Pacific Diesel Co. post-sale personnel (1959-60)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for PC-1242. 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-port-clinton-pc1242-05
-
[7]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), commissioned service (1943-47), and reserve-fleet layup (1947-59).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1979 (review covering use era to early 1970s)
- 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, consistent with prior batch experience) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-port-clinton-pc1242-06
-
[8]Batch-7738 search ledger (this record): live NHHC DANFS; NHHC photo catalog NH 86363; NavSource; shipbuildinghistory.com NABRICO table; uboat.net; NARA digitized deck-log index; NVR; secondary web litigation sweep; CourtListener (see ledger status) [other_primary]
- Locator
- search_ledger rows sl-uss-port-clinton-pc1242-01 through -12; CL result files cl-pc1242-*.json
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or litigation naming USS Port Clinton (PC-1242) was found in the public sources searched. CourtListener was searched 2026-10-03 - all four base queries executed: "USS Port Clinton" opinions and dockets returned 0; "PC-1242" opinions returned 0; "PC-1242" dockets returned 4 hits, all name collisions (a Colorado quiet-title action, a Georgia securities bankruptcy, an Indiana habeas petition, a Texas hospital bankruptcy) - none vessel-related, none asbestos. No base query overflowed its 20-result page, so no asbestos-qualified variants were run. Secondary web sweeps surfaced no qualifying case and no law-firm marketing content naming this hull (only generic mesothelioma practice pages, excluded by source policy). NARA's digitized deck-log index does not include PC-1242; NVR has no entry (pre-1987 disposal).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard. Undigitized deck logs, builder work packages (NABRICO yard closed 1996; records disposition unknown), and any disposal-contract records are open archival leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-port-clinton-pc1242-07
-
[9]Class-designation cross-check: DANFS spec block ('cl. PC-553'); NavSource hull-page header ('PC-663 Class Submarine Chaser'); NavSource index ('PC-461 Class 173-foot Submarine Chasers (PC-461 to PC-1569)'); uboat.net and Wikipedia class article (PC-461 class, incl. PC-1242 listing) [other_primary]
- Locator
- DANFS spec block; NavSource 12/011242.htm header and 12/01idx.htm index; uboat.net ship 8769 and class 463 pages
- Finding type
- historical_record
- Finding
- DESIGNATION VARIANCE: three different class labels attach to this hull across sources - DANFS spec block reads 'cl. PC-553'; the NavSource hull page heads her 'PC-663 Class' (likely reflecting the GM-diesel engined sub-group) while NavSource's own index groups PC-461 through PC-1569 under 'PC-461 Class'; and uboat.net plus the standard class literature assign her to the PC-461 class. The PC-461-class group label is carried in this record's ship_class field; the PC-553/PC-663 variants are documented here so they are not silently propagated or treated as distinct classes.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1944 (class build window)
- Limitations
- Documents a source variance, not a material claim. The submarine-chaser class-number conventions themselves (PC-461 vs PC-553 vs PC-663 sub-groups) are not fully resolved in official sources consulted; no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-port-clinton-pc1242-08