Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[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-736-pc736-pkt-932-packet-md
-
[2]NavSource Online: Submarine Chaser Photo Archive, SC-736 (ex-PC-736) - build dates, commissioning as PC-736, April 1943 reclassification, striking, 1948 Philippine transfer, class specifications [other_primary]
- Locator
- navsource.net 12/150736.htm - header designation line ('ex-PC-736'), milestone list, specifications block, photo captions
- Finding type
- vessel_history
- Finding
- Timeline for this hull: laid down 11 April 1942 by the Liberty Dry Dock Co., Inc., Brooklyn, NY; launched 29 October 1942; commissioned USS PC-736, 27 February 1943; reclassified SC-736 in April 1943; struck from the Naval Register 25 February 1946; transferred to the Philippines 2 July 1948 and named RPS Mountain Province (P-15); 'fate unknown.' Page explicitly notes 'There is no DANFS history available for SC-736.' Specifications block: displacement 95 t.; length 110'10"; beam 17'; draft 6'6" (fl); speed 15.6 kts.; complement 28; armament - one 3"/50 Mk 22 DP mount, two 20mm Mk 4 mounts, one or two twin .50 cal. machine guns, two/three Mk 6 depth-charge K-guns, 14 depth charges with six single release chocks, two Mk 20 Mousetrap rails with four 7.2" projectiles; propulsion - two 1,000-bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Photo captions include a 24 February 1943 fitting-out image and a DANFS-credited c.1943 image.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- Liberty Dry Dock construction trades (1942); crew (1943-46); Philippine Navy crew (1948 onward)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates here are corroborated ship-specifically by the NARA muster-roll coverage (2/27/43-2/1/46) and war diaries. Contains no asbestos content. 'Fate unknown' means NavSource has no post-1948 disposition record; a secondary ship list (navypedia.org) carries the Philippine unit stricken 1970-74 - unverified.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-01
-
[3]NARA Catalog file unit 'SC-736, 2/27/43-2/1/46', NAID 192213661, Roll 6855 - RG 24 Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities (digitized, Fold3 partnership) [other_primary]
- Locator
- NARA Catalog NAID 192213661 - file-unit title 'SC-736, 2/27/43-2/1/46', RG 24, Roll 6855
- Finding type
- historical_record
- Finding
- NARA holds this hull's muster rolls digitized as a single file unit spanning her entire commissioned career - 27 February 1943 (commissioning date, matching NavSource) through 1 February 1946 (three weeks before the documented 25 February 1946 striking). Record Group 24 (Bureau of Naval Personnel), roll 6855, scans publicly readable.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1946
- Population
- Commissioning and service crew, 1943-1946
- Limitations
- Archival lead: the catalog entry and reel scans are verified, but individual quarterly roll pages were not transcribed this session - crew names and manning levels are retrievable but not read. The 2/27/43 start corroborates the commissioning date but does not by itself list the PC-736 designation (the unit title uses SC-736, her name for the bulk of the coverage). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-02
-
[4]NARA Catalog, RG 38 'World War II War Diaries, Other Operational Records and Histories' - USS SC-736 monthly war diaries (digitized, Fold3 partnership): 5/1-7/31/43 (NAID 78137940, Roll A479); 10/1-31/43 (NAID 134341152, A644); 11/1-30/43 (NAID 136019531, A713); 2/1-29/44 (NAID 78330114, A854); 3/1-31/44 (NAID 78367644, A898); 4/1-30/44 (NAID 78422947, A953); 5/1/44-6/5/44 (NAID 78529693, A1058) [other_primary]
- Locator
- NAID 78137940 (May 1943 log, 2 May page 'In port Miami Florida'); NAID 134341152 (1 Oct 1943 page, Buna Harbor); NAID 78330114 (Feb 1944 diary pp. 1+; TU 76.5.3, convoy entries 1-5 Feb)
- Finding type
- vessel_history
- Finding
- Digitized deck-log/war-diary coverage naming this hull, contents read this session: 2 May 1943 page records 'In port Miami Florida' (zone +4). The 1 October 1943 log places her in Buna Harbor, New Guinea (zone -10, ~08-40 S 148-25 E), moored alongside LCT-61 and LCT-453 and bow-beached for repairs. The February 1944 diary places her under Commander Task Unit 76.5.3, Task Force 76, Seventh Amphibious Force, Seventh Fleet: 1 Feb escorting MV Comara, MV Wombat, MV Tassie Six, and LCM-34 Finsch Harbor to Cape Cretin; 3-4 Feb escorting Comara, Wombat, and LCM-34 to Cape Gloucester, New Britain, then returning independently (600 rounds .50-cal practice fire expended); 5 Feb escorting APc-6, APc-19, APc-15 and fifteen LCTs of Flotilla Seven to Buna. Logs approved over the signature of commanding officer F. A. Marsteller.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-05 to 1944-06 (coverage located)
- Population
- Crew of ~28 (design complement) in Southwest Pacific operations, 1943-1944
- Limitations
- Primary daily logs - verified ship-specific operational history, no asbestos or material content. Digitized coverage is incomplete: no diary units located for Feb-Apr 1943 (commissioning/shakedown), Aug-Sep 1943, Dec 1943-Jan 1944, or after 6 June 1944 (including the Dec 1944 Ormoc Bay operation credited in secondary listings). Daily pages not exhaustively transcribed - entries quoted are the pages read this session.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-03
-
[5]NARA Catalog file unit 'USS SC-736 - Act Rep, 4/22/44, Tanah Merah Bay (New Guinea) Operation', NAID 78423557, Roll A954, RG 38 (2-page report, full text read): SC736/A16 Serial 011, CONFIDENTIAL, 1 May 1944 [other_primary]
- Locator
- NAID 78423557 - 2-page report text, paragraphs 1-8 and signature block (Micro Serial 72502, Serial 011, File A16)
- Finding type
- vessel_history
- Finding
- Contemporaneous action report signed by commanding officer F. A. Marsteller (SC736/A16 Serial 011, 1 May 1944, to C-in-C U.S. Fleet via CTU 77.1.7, CTG 77.1, CTF 77 (Comdr Seventh Amphibious Force), and Comdr Seventh Fleet): under Task Force 77 Operation Plan 3-44 'this ship served as inner control vessel in the landing operations at Tanahmerah Bay, Dutch New Guinea, on 22 April 1944. Control of landing craft was exercised by Captain Neil D. Brantley, U.S.N., Commander Task Unit 77.1.7, embarked on this vessel.' She took station at the 3000-yard line of departure at 0625 and 'From 0630 to 0634 this vessel bombarded Kumkeboh Island, expending sixty four (64) rounds of 40mm HE ammunition. No return fire was observed.' First wave passed for Red TWO Beach at 0648; last wave left 0750; 'All personnel performed their duties in a highly satisfactory manner. ... There were no ordnance casualties.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-04-22
- Population
- Crew plus embarked CTU 77.1.7 staff (Capt. N. D. Brantley) during the Hollandia landing
- Limitations
- Primary ship-written operational document - strongest vessel-history evidence for this hull; no asbestos or material content. Documents a single operation (Hollandia/Tanahmerah Bay landing, 22 April 1944) - other campaign credits rest on secondary listing (see ev-08 and gaps).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-04
-
[6]NavSource 110' Submarine Chaser pages - SC-497 class index (580 built, 142 Lend-Lease; ex-PC designation pattern) and the SC-1024 story page (45 small shipyards, wood-for-steel rationale, Liberty Dry Dock built SC-736 and SC-737; credited to Treadwell, 'Splinter Fleet/The Wooden Subchasers of World War II', Naval Institute Press 2000) [other_primary]
- Locator
- navsource.net 12/15idx.htm - class preamble and SC-736 line ('SC-736 ex-PC-736'); navsource.net 12/151024d.htm - yard-count, wood/steel rationale, 'Liberty Dry Dock Co., Inc., Brooklyn, NY built two: SC-736 and SC-737'
- Finding type
- vessel_history
- Finding
- Class context: the SC index states 580 SC-497-class wood-hulled 110-foot submarine chasers were built during WWII, 142 transferred to Allies under Lend-Lease; the NavSource-hosted class history states contracts went to some 45 small shipyards for 438 wooden chasers, wood being 'called for as steel was needed for larger warship construction,' and that Liberty Dry Dock Co., Inc., Brooklyn, NY built two - SC-736 and SC-737. The class index shows the fleet-wide renumbering this hull underwent: SC entries across the index carry 'ex-PC-xxx' marks (this hull's line reads 'SC-736 ex-PC-736') - the boats were commissioned under patrol-craft (PC) hull numbers in early 1943 and reclassified to the SC series in April 1943, matching this hull's 27 February 1943 PC-736 commissioning and April 1943 reclassification.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1945
- Population
- Construction trades at ~45 small boatyards, 1941-1945
- Limitations
- Class/program context only - does not name this hull beyond its index line. Yard-count and Lend-Lease figures are NavSource's compilation; construction-rationale framing is era history, not a hull record. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-05
-
[7]Era inference built on: NavSource class specifications (wood hull; two GM 8-268A diesels, 15.6 kt); SC-497 program documentation (wooden construction, small-boatyard builds); GAO HRD-80-2 Navy asbestos-use era (see ev-07) [other_primary]
- Locator
- NavSource specifications block (propulsion line); GAO HRD-80-2 for program-era framing
- Finding type
- asbestos_application
- Finding
- A wood-hulled diesel-powered 110-foot submarine chaser built 1942 sits inside the Navy's documented asbestos-use era, but with a materially narrower application set than a steam combatant: no boilers and no steam piping aboard, so the boiler/turbine lagging pathway does not apply. Era-standard asbestos-relevant items aboard a small diesel craft of this period: diesel-exhaust and muffler lagging, gaskets and flange packing in machinery spaces, and electrical insulation.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- Liberty Dry Dock construction trades (1942); crew (1943-46); Philippine Navy crew and any refit trades (1948 onward)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or crew account located for SC-736. Names plausible era-standard applications, not confirmed installed materials; no quantity, no manufacturer attribution. Whether any asbestos remains relevant post-scrapping/transfer is moot - hull fate unknown.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-06
-
[8]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) and U.S. service era (1943-46).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- 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 - and the shipboard-insulation finding is primarily a steam-era/piping observation whose applicability to a small wooden diesel craft is limited. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403, confirmed 2026-10-03) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-07
-
[9]Secondary transcription of Navy Department campaign-participation listing (Navy and Marine Corps Awards Manual NAVPERS 15,790, Rev. 1953) - SC 736 entry [other_primary]
- Locator
- officialmilitaryribbons.com SC 692-1004 listing, SC 736 rows (campaign codes P17-2, P17-3, P22-5, P22-13, P40, P28-3, P31-7)
- Finding type
- vessel_history
- Finding
- A secondary transcription of the official NAVPERS 15,790 campaign listing credits SC-736 with Asiatic-Pacific operations: Lae occupation (9-10 Sep 43), Finschhafen occupation (22-23 Sep 43), Cape Gloucester New Britain (Jan-Mar 44), Seventh-Fleet consolidation ops (10 Mar 44), Hollandia operation (21-27 Apr 44), Toem-Wakde-Sarmi area operation (18-20 May 44), and Ormoc Bay landings (7-8 Dec 44).
- Verification
- partial
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1943-1945
- Population
- Crew during SW Pacific amphibious operations, 1943-1945
- Limitations
- Secondary transcription of an official manual (commercial awards-reference site), not itself an official page - NAVPERS 15,790 is the underlying source; no official scan located online. The Sep 1943 Lae/Finschhafen and Dec 1944 Ormoc credits fall outside the digitized war-diary coverage located this session (diaries cover May 1943-Jun 1944 with gaps); Hollandia and Cape Gloucester are corroborated ship-specifically by ev-03/ev-04.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-08
-
[10]Designation cross-check: NavSource SC-736 page ('SC-497 Class Submarine Chaser', wood hull, 110'10", 95 t.) vs. PC-461-class specifications (173-foot steel patrol craft) - the class correction mandated by the batch task [other_primary]
- Locator
- NavSource 12/150736.htm milestone list and specifications block; SC index ex-PC pattern; NARA NAID 192213661 title
- Finding type
- vessel_history
- Finding
- CORRECTION carried per batch mandate and confirmed: this hull is an SC-497-class 110-foot wooden submarine chaser, not a PC-461-class 173-foot steel patrol craft - the PC-736 designation was a wartime numbering artifact (110-foot boats commissioned under PC hull numbers, reclassified to SC series April 1943). The PC-736 designation also collides with the PC-461-class numbering range (PC-461 through PC-825), which is the source of the misattribution. Additionally, contrary to the batch summary's attribution, DANFS contains no history for this hull (NavSource note; NHHC pages 404) - the 27 February 1943 commissioning is documented by NavSource and corroborated by the NARA muster-roll coverage start (2/27/43).
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943
- Limitations
- Corrects a class/designation error, not a material claim. NavSource is the explicit authority for the reclassification sequence; NARA muster-roll coverage corroborates the date. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-09
-
[11]Batch-8110 search ledger (this record): NHHC DANFS (both designations, 404); NavSource SC-736 page and SC class index; NARA Catalog (muster roll NAID 192213661; war diaries and action report NAIDs - page contents read); GAO product page; NVR check; secondary web sweep [other_primary]
- Locator
- search_ledger rows sl-uss-pc-736-pc736-01 through -09
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming SC-736 / PC-736 was found in the public sources searched (see search_ledger). CourtListener status is recorded in search_ledger row sl-05 (throttled at research time). Secondary web sweeps surfaced no qualifying case; the only 'asbestos aboard' material located is law-firm marketing listicle content (asbestos-ship list pages) asserting asbestos without primary sourcing - excluded by source policy.
- 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-standard items (exhaust lagging, gaskets, packing, electrical insulation) plausibly applied to a 1942 diesel combatant. Undigitized leads remain: Bureau of Ships plans/specs for Liberty Dry Dock hulls, Philippine Navy service records, and the unread portions of the muster roll. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-736-pc736-10