Evidence
14 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-14).
-
[1]research packet 932-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: MISMATCH
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-737-pc737-pkt-932-packet-md
-
[2]DANFS appendix listing, SC-701 through SC-800, SC-737 paragraph (NHHC; live content verified via rendered fetch 2026-10-03; direct GET returned 404 to simple clients) [nhhc_danfs]
- Locator
- DANFS 'SC-701 - SC-800' compilation, SC-737 paragraph
- Finding type
- vessel_history
- Finding
- DANFS lists SC-737: 'Built at Liberty DD Co., Inc., Brooklyn, N.Y. Keel laid 4/18/42. Launched 12/15/42. Commissioned 5/20/43. Transferred to Foreign Liquidation Commission 8/13/47.' The entry is filed under the SC designation; it does not mention the construction-period PC-737 designation.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1947
- Population
- Liberty Dry Dock construction trades (1942-43); U.S. Navy crew (1943-46)
- Limitations
- Terse appendix-style entry only - no operations history, no decommissioning/striking dates, no specifications, no asbestos or material content. The canonical URL returns 404 to simple direct GETs though it serves full content to rendered fetches; a Wayback capture (2025-12-09) exists as fallback.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-01
-
[3]NavSource Online: Submarine Chaser Photo Archive, SC-737 page (live navsource.net URL verified 2026-10-03) [other_primary]
- Locator
- NavSource archives/12/150737.htm, SC-737 timeline and specifications block
- Finding type
- vessel_history
- Finding
- NavSource identifies the hull as 'ex-PC-737,' SC-497 class: laid down 18 April 1942 as PC-737 by Liberty Dry Dock Co., Inc., Brooklyn NY; launched 15 December 1942; reclassified SC-737 April 1943; commissioned SC-737 20 May 1943; struck from the Naval Register 26 February 1946; transferred to the State Department Foreign Liquidation Commission 13 August 1947; fate unknown. Specifications: 148 t., 110'10" x 17' x 6'6", 15.6 kts, complement 28; one 40mm mount, two .50 cal MG, two Y-gun depth-charge projectors, two depth-charge tracks; two 880 bhp General Motors 8-268A diesels, Snow and Knobstedt single-reduction gear, two shafts. Call sign NXKJ.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1947
- Population
- U.S. Navy crew (1943-46)
- Limitations
- NavSource is a volunteer-maintained photographic/historical archive, not an official Navy publication; the PC-737 construction designation and the 1946-02-26 striking date rest on NavSource alone among located sources (DANFS omits them). No decommissioning date is given. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-02
-
[4]NARA Special List #44 - List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947, by Ship Number (PDF verified live 2026-10-03) [other_primary]
- Locator
- Special List #44 by Ship Numbers, SC-737 row (page containing SC-736 through SC-745 entries)
- Finding type
- historical_record
- Finding
- Special List #44 catalogs one SC-737 deck-log holding at the National Archives: coverage 5/21/1943-6/30/1945, filed under SC-737 (no PC-737 entries appear in the list). The window spans commissioning day plus one through mid-1945.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-05-21 to 1945-06-30
- Population
- U.S. Navy crew represented by surviving/identified log coverage
- Limitations
- Catalog of holdings, not the logs themselves - establishes that a deck-log run exists in NARA custody, not its content. These are log-coverage dates, not inferred commissioning or decommissioning dates.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-03
-
[5]NARA Catalog file unit NAID 192213876, 'SC-737, 5/21/43-1/1/46,' Record Group 24, Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities (179 images, digitized via Ancestry partnership; live page verified 2026-10-03) [other_primary]
- Locator
- catalog.archives.gov/id/192213876; Container Roll 6856
- Finding type
- historical_record
- Finding
- NARA holds and has digitized 179 images of SC-737 muster rolls covering 5/21/1943-1/1/1946 - personnel lists naming the crew through the end of documented naval service. Coverage begins the day after commissioning and extends past the 12/1945 period some secondary sources give for decommissioning.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-05-21 to 1946-01-01
- Population
- U.S. Navy crew of SC-737 (named individuals on muster rolls)
- Limitations
- File-unit catalog record verified; page images not individually reviewed this session. Muster coverage proves personnel reporting, not ship status; the 1/1/46 end date is a coverage boundary, not a decommissioning date. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-04
-
[6]NARA Catalog, Record Group 38 WWII War Diaries: USS SC-737 war diaries 5/21/43-8/31/43 (NAID 78204277, 111 images, Roll A596), 9/1-30/43 (NAID 134332289, Roll A634), 10/1-31/43 (NAID 134341185, Roll A644), 11/1-30/43 (NAID 78260580, Roll A776); and 'USS SC-737 - Report of AA Actions off Leyte Island, Philippines, 12/20/44' (NAID 139779089, Roll A1315) - all digitized, unrestricted (live pages verified 2026-10-03) [other_primary]
- Locator
- catalog.archives.gov/id/78204277, /id/134332289, /id/134341185, /id/78260580, /id/139779089
- Finding type
- historical_record
- Finding
- Five digitized RG 38 file units document SC-737's operational record: monthly war diaries for May 21-November 30, 1943, and an action report titled 'Report of AA Actions off Leyte Island, Philippines, 12/20/44' - the latter establishing by its cataloged title that SC-737 fought anti-aircraft actions off Leyte in December 1944.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1944
- Population
- U.S. Navy crew (1943-44)
- Limitations
- File-unit titles and coverage verified at catalog level; image content not reviewed page-by-page this session (image fetches return the catalog SPA shell). The AA-report title alone establishes the Leyte AA action - operational narrative detail awaits transcription. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-05
-
[7]NAVPERS 15,790 (Rev. 1953), Navy and Marine Corps Awards Manual, Part IV ship awards list, SC-737 entry (official manual via HyperWar transcription, live verified 2026-10-03) [other_primary]
- Locator
- NAVPERS 15,790 Part IV (Awards-IV-16.html), SC-737 row in the ship list; P207 definition in the operation-code table
- Finding type
- historical_record
- Finding
- The official awards manual credits SC-737 with one engagement-star award line: '15 Nov 45 - 5 Feb 46 | P207' - P207 is 'Minesweeping Operations Pacific' (umbrella period 23 Jun 45 - 2 Mar 46). This documents post-surrender minesweeping-operations participation extending into February 1946, weeks before the Naval Register striking NavSource records on 26 February 1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-11-15 to 1946-02-05
- Population
- U.S. Navy crew (1945-46)
- Limitations
- Award-line entry only - establishes credited operation participation and the ship's in-service status over the credited window; supplies no ports, task organization, or casualty/loss detail. The 2/5/46 credit end is an award boundary, not a decommissioning date. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-06
-
[8]Shipbuilding History (T. Colton), Liberty Dry Dock, Brooklyn NY construction list (live page verified 2026-10-03) [other_primary]
- Locator
- shipbuildinghistory.com/shipyards/small/liberty.htm, SC 737 row of the yard's construction table
- Finding type
- historical_record
- Finding
- The yard compilation lists 'SC 737 | U.S. Navy | Sub Chaser | 136 | 110 | 20-May-43 | To the FLC 1947' - corroborating builder, delivery/commissioning date, and the 1947 Foreign Liquidation Commission disposition. The yard occupied the former Continental Iron Works site at the foot of Quay Street, Greenpoint, Brooklyn, and closed in 1955. Sister SC-736 sits in the adjacent row ('To the Philippines 1948 as Mountain Province (P-15)').
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1943
- Population
- Liberty Dry Dock yard trades (1942-43)
- Limitations
- Professional secondary compilation of yard records, not an official source; '136' tonnage conflicts with NavSource's 148 t. and the official compilation's 98 t. (different measures - deadweight vs displacement - none reconciled here). No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-07
-
[9]Ships of the U.S. Navy, 1940-1945 - SC Submarine Chasers section, SC-497 Class specifications (official compilation via HyperWar transcription, live verified 2026-10-03) [other_primary]
- Locator
- ibiblio.org/hyperwar/USN/ships/ships-sc.html, 'SC-497 Class' specifications block; SC-737 appears only within aggregate row 'SC-722-737'
- Finding type
- historical_record
- Finding
- The official compilation lists the SC boats under 'SC Submarine Chasers (Wooden Hull)': SC-497 class - displacement 98 tons, length 110'10", beam 17', draft 6'6", speed 20 knots, armament 1 x 3"/50 and 2x2 .50-cal MG, complement 2 officers and 20 enlisted, diesel engines with twin screws at 1,200 shaft hp. Establishes at class level that these were wooden-hulled diesel craft with no steam plant.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- SC-497-class crews generally
- Limitations
- Class-level specification table, not this hull's record; figures differ from NavSource's ship page (98 t. vs 148 t., 20 kts vs 15.6 kts, complement 22 vs 28) - variances not reconciled, likely standard-vs-loaded measures. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-08
-
[10]NARA, The Unwritten Record blog, 'Spotlight: Submarine Chasers' (April 26, 2016; live verified 2026-10-03) [other_primary]
- Locator
- unwritten-record.blogs.archives.gov, 'Spotlight: Submarine Chasers' paragraphs on the 110-foot wooden type
- Finding type
- historical_record
- Finding
- NARA's archival blog documents the 110-foot wooden submarine-chaser type: the design was specified 'economical and expeditious' and built of wood because steel and large shipyards were committed to larger vessels, so chasers were built 'at a size suitable for quick turnaround in smaller commercial shipyards' - matching this hull's construction at the small Liberty Dry Dock yard on Newtown Creek.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1917-1945
- Population
- Small commercial shipyard trades, 1917-1944 programs
- Limitations
- Class/program-level context from an official agency publication; names no individual hull and contains no asbestos or material-content information. The featured plans (SC-448) are WWI-era; the WWII SC-497 class is described only in passing.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-09
-
[11]GAO, 'Navy Efforts To Protect Workers From Asbestos Exposure,' HRD-80-2 (published Oct 18, 1979; product page verified 2026-10-03 - direct fetch returns 403 to automated clients) [gao]
- Locator
- gao.gov/products/hrd-80-2 product page; report pp. 1-2 introductory discussion
- Finding type
- gov_survey
- Finding
- GAO reviewed the Navy's efforts to protect workers from asbestos exposure, including 'the use of asbestos in Navy ships, the cost of removing asbestos from Navy ships, and compensation programs for asbestos-related disabilities,' with fieldwork at Long Beach and Norfolk Naval Shipyards; per GAO, the Navy regarded all ships as containing some asbestos in components such as clutches and electric cables, with thermal insulation the major shipboard asbestos use.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1975-1979 policy review
- Population
- Navy shipyard workers and Navy ships reviewed at program level
- Limitations
- Program-level report on steam-era naval vessels and shipyard repair activity; no submarine chaser or this hull is named, and the fieldwork yards are large industrial naval shipyards, not the small commercial yard that built this hull. gao.gov blocks automated full-text fetch; product-page description used. Context for the era program, not hull evidence.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-10
-
[12]Era/design inference built on: NavSource SC-737 specifications (two 880 bhp GM 8-268A diesels, no steam plant); official SC-497 class specifications (wooden hull, diesel twin screws); NARA Unwritten Record (wooden 110-foot type built in small commercial yards); GAO HRD-80-2 Navy-wide component context [other_primary]
- Locator
- Inference synthesized from evidence rows ev-02, ev-08, ev-09, ev-10
- Finding type
- asbestos_application
- Finding
- SC-497-class hulls were wooden 110-foot diesel submarine chasers; with no boilers or steam distribution, the steam-fleet's high-density asbestos systems (boiler lagging, steam-line insulation, turbine packing) were absent by design. Era-consistent residual applications aboard a 1942-43 diesel combatant: diesel exhaust lagging, machinery gaskets and packing, electrical insulation and cable insulation, and asbestos-bearing panel or decking compounds where specified.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1947
- Population
- Liberty Dry Dock construction trades (1942-43); U.S. Navy crew (1943-46)
- Limitations
- Pure class/era inference - no manual, plan, survey, or hull record located ties any asbestos product to SC-737 specifically. Quantities unknown; presence aboard this hull is neither established nor excluded. The wooden-hull/diesel configuration bounds the plausible exposure profile below that of a steam-driven steel combatant but does not eliminate it.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-11
-
[13]Batch-8111 search ledger (this record): DANFS; NavSource ship page and class index; NARA Special List #44; NARA Catalog muster rolls, war diaries, and Leyte AA action report; NAVPERS 15,790 via HyperWar; shipbuildinghistory Liberty Dry Dock list; HyperWar ships-sc official compilation; NARA Unwritten Record; GAO HRD-80-2; NHHC Pacific Fleet Organization 1 May 1945; CourtListener API v4 helper [other_primary]
- Locator
- search_ledger rows sl-uss-pc-737-pc737-01 through sl-uss-pc-737-pc737-16
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no survey, abatement contract, hazmat disclosure, material list, litigation pleading, or museum/trust documentation naming SC-737 or PC-737 was found in the public sources searched (see search_ledger). Web asbestos-term searches return no hull-relevant hits.
- 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 - era materials may have been present and removed undocumented at FLC disposal or in post-transfer service. Does not establish or defeat any claim of exposure or legal eligibility. CourtListener sweep status is recorded in the search_ledger; if left blocked, litigation remains unsearched and must not be restated as a no-result finding.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-12
-
[14]Designation cross-check: batch roster carried 'PC-737' with PC-461 class; DANFS appendix listing, NARA SL-44, NARA Catalog file units, NAVPERS 15,790 ship list, and the yard list all file the vessel under SC-737; NavSource class index explains the 1943 type-symbol change (live verified 2026-10-03) [other_primary]
- Locator
- NavSource 12/01idx.htm class introduction and SC-497 roster row 'SC-737 ex-PC-737'; NavSource 12/150737.htm timeline
- Finding type
- vessel_history
- Finding
- Correction: this hull is an SC-497-class 110-foot wooden submarine chaser, canonical designation SC-737 - not a PC-461-class 173-foot steel patrol craft. 'PC-737' was the construction-period designation (NavSource: laid down as PC-737 18 April 1942, reclassified SC-737 April 1943); all official listings (DANFS, NARA SL-44, NARA muster rolls and war diaries, NAVPERS 15,790) file the vessel under SC-737. NavSource's class index documents the 1943 split: PC retained for the steel 173-footers, SC adopted for the 110-foot vessels.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1943
- Limitations
- The PC-737 designation interval is NavSource-sourced only; commissioning documents that would confirm it are not digitized. Record slug/file retains 'uss-pc-737-pc737' for batch identity; canonical hull is SC-737.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-737-pc737-13