Evidence
18 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-18).
-
[1]research packet 935-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: PHANTOM
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-761-pc761-pkt-935-packet-md
-
[2]DANFS, 'SC-701 - SC-800' compilation - SC-761 entry (live NHHC page, verified 2026-10-03) [nhhc_danfs]
- Locator
- DANFS SC-701 - SC-800 page, SC-761 paragraph
- Finding type
- vessel_history
- Finding
- DANFS records for this hull, verbatim: 'Built at W. A. Robinson Inc., Ipswich, Mass. Keel laid 3/14/42. Launched 8/24/42. Commissioned 9/24/42. Transferred to Maritime Commission 3/1/48.' The entry is a one-line milestone record with no service narrative - it does not carry the PC-761 commissioning designation, the April 1943 reclassification, the Pacific service record, or the decommissioning/striking dates.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- W. A. Robinson yard construction trades (1942); crew (1942-45)
- Limitations
- Ship-specific milestones only; no asbestos or material content, no spec block, no service narrative. NavSource's page note 'There is no DANFS history available for SC-761' refers to the absence of a full narrative entry - this one-line compilation entry does exist and was verified live 2026-10-03.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-01
-
[3]NavSource Online: Submarine Chaser Photo Archive, SC-761 (page verified live 2026-10-03 on canonical /archives/ path) [other_primary]
- Locator
- NavSource 12/150761.htm header block, specifications block, commanding-officer table, photo-caption table
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: laid down 14 March 1942 by W. A. Robinson, Inc., Ipswich, Massachusetts; launched 24 August 1942; commissioned PC-761 on 24 September 1942; reclassified SC-761 in April 1943; visited Auckland, New Zealand 15-26 October 1944; decommissioned in November 1945 at Mare Island Naval Shipyard, Vallejo, CA; struck from the Naval Register 19 December 1945; transferred to the Maritime Commission 1 March 1948; 'Fate unknown.' Specifications: 148 t.; 110'10" x 17' x 6'6"; 15.6 kts.; complement 28; armament one 40mm mount, two .50 cal. machine guns, two depth charge projector 'K Guns,' two depth charge tracks; propulsion two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Call sign NXPZ (Nan-Xray-Peter-Zebra). Sole CO roster entry: ENS M. W. Pierce, USNR (1945). Sole photograph: c. Spring 1945, standing out of Espiritu Santo, New Hebrides, reprinted from 'Subchaser in the South Pacific' by J. Henry Doscher, Jr.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- W. A. Robinson yard construction trades (1942); crew (1942-45)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its milestone dates track DANFS where DANFS covers them; the commissioning designation (PC-761), reclassification month, Auckland port call, decommissioning location/month, striking date, call sign, spec block, and photo come from this source alone among those searched. The CO roster is demonstrably incomplete - the Doscher memoir and ozatwar compilation document Lt. Balcom (mid-1943) and Doscher himself (from Sep 1943) as commanding officers; Pierce's single 1945 entry is the only one NavSource carries. 'Fate unknown' stands - no post-transfer record located. Its 'no DANFS history' note is stale - the one-line DANFS entry exists (ev-01). Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-02
-
[4]NavSource Online: 110' Submarine Chaser photo index - class introduction and SC-497-class roster (verified live 2026-10-03) [other_primary]
- Locator
- NavSource 12/01idx.htm class introduction paragraph and SC-497-class roster rows (SC-761 ex-PC-761)
- Finding type
- vessel_history
- Finding
- CORRECTION / designation-chain support: the class index explains the PC-761 -> SC-761 reclassification as class-wide, not hull-unique - 'World War II expansion programs led to construction of two large groups of subchasers, the new 110-foot wooden-hulled craft and the 173-foot steel-hulled type. By 1943, it was felt desirable to differentiate between the two types. The type symbol PC was retained for the steel 173-footers, and the separate symbol SC was adopted for the 110-foot vessels. These now dropped the dual "S.C.-PC" identification, and were simply identified as "USS SC-."' The roster lists 'SC-761 ex-PC-761' alongside the same ex-PC pattern for every early class boat. This hull was therefore never a PC-461-class steel patrol craft: PC-761 was the shared-series number carried by a wooden 110' boat until the April 1943 re-symboling.
- Verification
- verified
- Role
- correction
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1943
- Limitations
- Corrects the batch-scope classification: 'PC-761' reads as a PC-461-class hull number but is a designation-history fact, not a hull-type fact. The 1943 dual-to-SC re-symboling is stated at class level; this hull's specific April 1943 reclassification month rests on the vessel page (ev-02). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-03
-
[5]Shipbuilding History (Tim Colton), W. A. Robinson yard construction table, Ipswich MA; corroborated by the site's WWII sub-chaser production table at shipbuildinghistory.com/smallships/pc2.htm (both verified live 2026-10-03) [other_primary]
- Locator
- robinsonma.htm yard table, SC 761 row; smallships/pc2.htm SC 761 row; yard-history header
- Finding type
- vessel_history
- Finding
- The builder's-yard table records for this hull: 'SC 761 | US Navy | Sub Chaser | 136 | 110 | 24-Sep-42 | To the NDRF 1948' - corroborating the 24 September 1942 delivery/commissioning date and giving the post-transfer destination as the National Defense Reserve Fleet. The companion production table lists 'SC 761 | W. A. Robinson | Ipswich MA | 148 | 110 | 24-Sep-42 | To MARAD 1948' - consistent (MARAD transfer to the reserve fleet). The yard page documents William A. Robinson as an engineer from Kenosha WI who bought an existing small shipyard on Fox Creek near Ipswich in 1937 to build wooden sailing vessels; the yard built over 200 vessels during the war including many small craft (LCMs among them); Robinson closed the business and moved to Tahiti after the war and the yard was razed.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- W. A. Robinson yard construction trades (1942); NDRF custody workforce (1948-?)
- Limitations
- Shipbuildinghistory is a long-running secondary reference compilation (yard records and delivery tables), not an official registry. The yard table's '136' and the production table's '148' are the site's type/design series columns (as on sibling tables), not conflicting displacements of record. 'To the NDRF 1948' vs 'To MARAD 1948' are consistent renderings of the same disposal path (Maritime Commission -> National Defense Reserve Fleet); DANFS carries only 'Transferred to Maritime Commission 3/1/48.' No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-04
-
[6]J. Henry Doscher, Jr., 'Subchaser in the South Pacific: A Saga of the USS SC-761 during World War II' (Eakin Press, Austin, 1994) - author's synopsis page (ARCHIVED: live site adcgolf.com/leyte/chaser.htm is now a parked-domain redirect; last full-content Wayback capture 2018-12-28, verified 2026-10-03) [other_primary]
- Locator
- Wayback 2018-12-28 capture of adcgolf.com/leyte/chaser.htm - synopsis paragraph, reviews block, photo captions, publisher line
- Finding type
- vessel_history
- Finding
- Published-memoir synopsis for this hull, authored by her wartime commanding officer: SC-761 'began it naval career in 1942 performing convoy duty along the Atlantic coast from New York to Cape May'; in January 1943 she and other selected subchasers were reassigned to the South Pacific Fleet; she 'reported for duty at Guadalcanal in early April 1943' and 'took part in the Solomon Islands campaigns of that year.' She and sister SC-760 'took part in the initial invasion of Vella LaVella in August of 1943, under heavy aircraft attacks. This was the first time a subchaser was so used.' Working with U.S. submarines she 'played an active part in returning coastwatchers from Bougainville shortly prior to the invasion of that island.' She convoyed merchant ships, survived hurricanes, fought dive bombers with 40mm and 20mm guns, depth-charged suspected submarines 'and claimed credit for a "kill" as to one submarine.' Crewed mainly by reservists; on one occasion 'personally commended by their task force commander, Rear Admiral T. S. Wilkinson.' The story 'ends with its decommissioning at Mare Island, California, in late November of 1945.' Page documents the book as published by Eakin Press, Austin, 1994, with royalties assigned to the Museums of Abilene; photo captions place the crew at Lautoka, Fiji, Christmas Day 1943 and the coastwatchers on her forecastle returning to Guadalcanal.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- Crew (1942-45), largely reservists
- Limitations
- ARCHIVED-SOURCE citation: the live page is a parked domain; content verified via Wayback capture 2018-12-28 (stable digest back to 1999). The synopsis is the author's own summary of his memoir - a firsthand participant account, but a published-for-royalties narrative rather than an official record; mission-level detail (the 'kill' claim, 'first time a subchaser was so used') is asserted by the author and not independently verified here - the underlying war diaries (ev-10) are the open primary check. The full book text was not retrieved; the synopsis page itself carries no asbestos or materials content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-05
-
[7]J. Henry Doscher, Jr., author biography page (ARCHIVED: Wayback capture 2016-04-01, verified 2026-10-03; live site parked) [other_primary]
- Locator
- Wayback 2016-04-01 capture of adcgolf.com/leyte/author.htm - photo caption and 'Background' section
- Finding type
- historical_record
- Finding
- The memoir author's page identifies him, verbatim: 'The author, then a twenty-two year old Ensign, while Commanding Officer, USS SC-761. Photo taken early October, 1943, while under way off Guadalcanal.' Biography: J. Henry Doscher, Jr., Captain USNR (Ret.) - Amherst College, graduate history study at Hardin-Simmons, law degree University of Texas at Austin, briefing attorney to the Chief Justice of the Supreme Court of Texas; 28 years active and reserve naval service; later a law professor and attorney. The page states his manuscripts were 'accepted, and published, on a royalty basis.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943
- Population
- Commanding officer (1943-45 period)
- Limitations
- Establishes that the SC-761 memoir was written by her wartime commanding officer - a firsthand-source provenance claim, self-published by the author on his own site (archived copy cited). Does not itself document the ship; gives no dates of his command tenure beyond the October 1943 photo caption (the ozatwar compilation carries 17 September 1943 as his orders-received date - ev-07). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-06
-
[8]ozatwar.com (Peter Dunn, 'Australia @ War'), 'Subchaser SC 761, 3rd Fleet US Navy rescues Australian Coast Watchers during WW2' - compilation assembled with the assistance of J. Henry Doscher (verified live 2026-10-03) [other_primary]
- Locator
- ozatwar.com/usnavy/sc-761.htm - mission narrative paragraphs, acknowledgements, reference-books block
- Finding type
- vessel_history
- Finding
- Detailed mission narrative for this hull, sourced from the Doscher memoir and acknowledged by Doscher himself: on Wilkinson's orders SC-761 departed 1100 Sunday 25 July 1943 for the Russell Islands and rendezvoused with USS Guardfish (SS-217) south of Point Pleasant, Rendova Island - radar contact 0355, alongside 0510 on 26 July; instead of the expected 15 personnel, 59 transferred aboard in 30 minutes, including about 20 Australian and New Zealand coastwatchers under Lt. Comdr. John R. Keenan, RAN, native police, loyal natives, 2-3 Fijians, a large number of Chinese who had hidden the party, and two survivors of an RAAF Catalina crash; landed at Lunga Point, Guadalcanal, after sunset. CO at the time was Lt. Ronald B. Balcom, USNR. A second rendezvous on 29 July 1943 brought out approximately 23 more personnel. Wilkinson personally commended Balcom and crew; quoted blinker signal: 'Both were seamen-like jobs performed by a smart ship X Well done to all hands X Wilkinson.' The page records that orders of 17 September 1943 made 21-year-old Ensign J. Henry Doscher, Jr. her commanding officer, and lists the trans-Pacific convoy in which she crossed: SC-518, -641, -648, -698, -701, -730, -739, -751, -760, -761 and -982, arriving Noumea end of March 1943 - SC-641, -730, -761 and -982 routed to the Guadalcanal/Tulagi area.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943
- Population
- Crew; ~82 recovered coastwatchers and dependants (July 1943)
- Limitations
- Secondary compilation, not an official record - but assembled 'with the assistance of Henry Doscher' (the ship's CO) and drawing on his memoir plus Feldt's 'The Coast Watchers' and Lord's 'Lonely Vigil'; carried 'partial' on that basis. Guardfish's presence in the Bougainville/Solomons sector recovering shore parties in July 1943 is independently corroborated by DANFS (ev-12); the memoir synopsis independently confirms the coastwatcher missions and the Wilkinson commendation. The July 1943 war diary (ev-10, NAID 134305845) is the open primary check for mission detail. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-07
-
[9]Library of Congress, Veterans History Project - Jack Heddell Collections (AFC2001001.13455 oral-history audio, 2004; AFC2001001.94675 video interview, 2014), service summaries naming USS SC-761 (verified live 2026-10-03) [other_primary]
- Locator
- loc.gov/item/afc2001001.13455 and loc.gov/item/afc2001001.94675 - service history blocks
- Finding type
- historical_record
- Finding
- The Veterans History Project holds two Jack Heddell collections: Navy veteran, dates of service 1943-1945, highest rank Petty Officer Second Class, enlisted; service units listed as 'USS SC-761 (Submarine Chaser); USS SC-730' (audio collection) and 'USS SC-761 (Submarine Chaser); USS SC-730 (Submarine Chaser)' (video collection); location of service 'Farragut, Idaho; Pacific Theater'; service-history note records Heddell noted 'sub chaser.' A named crew member of this hull is documented in a federal oral-history archive.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1945 (veteran's total service span)
- Population
- One documented crew member (Petty Officer Second Class Jack Heddell)
- Limitations
- Archival lead only: the VHP service summaries aggregate the veteran's career across two ships - they document that Heddell served aboard SC-761 at some point in 1943-1945 but do not date or locate the SC-761 tour specifically; the interviews themselves (audio 2004, video 2014) were not reviewed. Consistent with the memoir's account that the crew was largely reservists (Farragut NTS, Idaho, was the principal wartime training station). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-08
-
[10]NARA Special List 44 (by ship number), 'List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947' - SC-761 row (PDF verified live 2026-10-03); DPLA itemizes the same holding as catalog.archives.gov NAID 192200475 [other_primary]
- Locator
- sl-44-ship-number.pdf, SC hull-number sequence, SC-761 row (begin 9/24/1942, end 11/28/1945); DPLA item acf2cb725d433d8e20608df8b5a13949 -> catalog.archives.gov/id/192200475
- Finding type
- historical_record
- Finding
- NARA's Special List 44 ship-number index records deck logs held for SC-761 covering 9/24/1942 - 11/28/1945 (RG 24 series) - the log series begins on her commissioning date and runs through her November 1945 decommissioning window, corroborating the commissioned-service window against an official archival finding aid. The same holding is itemized in DPLA as the NARA file unit 'SC-761, 9/24/42-11/28/45' (Bureau of Naval Personnel creator, NAID 192200475).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-09-24 to 1945-11-28
- Population
- Crew (1942-45)
- Limitations
- Finding-aid level: documents that logs for this hull exist covering 24 September 1942 - 28 November 1945; the logs themselves were not read - contents (locations, operations, material notes) unknown. The 28 November 1945 end date is log coverage, not a stated decommissioning date (consistent with NavSource's November 1945 decommissioning month). NARA catalog is JS-rendered and could not be fetched directly (see search ledger) - the file-unit identification rests on the SL-44 PDF plus DPLA metadata. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-09
-
[11]Digital Public Library of America / NARA catalog - 'USS SC-761 - War Diary' records, World War II War Diaries collection, Records of the Office of the Chief of Naval Operations (verified live 2026-10-03) [other_primary]
- Locator
- DPLA items e1f8b7c9..., d9a1d99d..., d5ff05e0..., 89b746bc..., 560c9642..., 4976d578..., fc562157..., d3a30b1f... -> catalog.archives.gov/id/134197793, 134227760, 134266672, 134305845, 135946822, 78206163, 135981469, 136019593
- Finding type
- historical_record
- Finding
- NARA holds monthly war diaries for this hull covering every month February through November 1943, itemized via DPLA: 'USS SC-761 - War Diary, 2/1/43 to 4/30/43' (NAID 134197793, micro serial 49673, file A12-1/A16-3, dated 5/12/1943); '5/1-31/43 (Enc A)' (NAID 134227760, serial 271-45, file A12-1/A16-5); '6/1-30/43' (NAID 134266672, serial C-44); '7/1-31/43' (NAID 134305845); '8/1-31/43' (NAID 135946822); '9/1-30/43' (NAID 78206163); '10/1-31/43' (NAID 135981469); '11/1-30/43' (NAID 136019593). These are the ship's own operational reports for her transit-to-theater and Solomons-campaign months - the primary record underlying the memoir and compilation accounts.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-02 to 1943-11
- Population
- Crew (1943)
- Limitations
- Catalog-metadata level via DPLA: the war diaries' existence, date coverage, and file/serial numbers are verified; their contents were not read (NARA catalog JS-gated this session - microfilm records, unrestricted rights per DPLA). No war diary for December 1943 onward surfaced in the search - coverage may continue beyond November 1943 but was not found. These diaries are the open primary check for every mission-level claim in this record (coastwatcher recoveries, Vella Lavella, claimed submarine kill). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-10
-
[12]World War II U.S. Navy ship campaign-participation table (transcription of the CNO-approved campaign/engagement list), SC 761 row - via officialmilitaryribbons.com (verified live 2026-10-03) [other_primary]
- Locator
- officialmilitaryribbons.com 'USS SC-692 to SC-1004' page, SC 761 row block
- Finding type
- historical_record
- Finding
- The campaign-participation table credits this hull with one WWII operation: 'SC 761: 15 Aug 43 | P21-5 | Vella Lavella occupation' - consistent with the memoir's account of the initial Vella Lavella landing under air attack (ev-05) and with Cressman's official chronology of the 15 August 1943 Third Amphibious Force landing (ev-13).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-08-15
- Population
- Crew aboard, Vella Lavella operation (August 1943)
- Limitations
- Secondary transcription on a commercial ribbon-vendor site of the official CNO campaign-participation list - the campaign codes and dates follow the Navy's awards annexes, but the underlying official document was not located online this session. Single credit for this hull (sister SC-760 carries Vella Lavella plus Treasury Island). Corroborated by the memoir synopsis and the Cressman entry. Carried 'partial'; the authoritative citation remains the CNO list itself.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-11
-
[13]DANFS, Guardfish (SS-217) entry (live NHHC page, verified 2026-10-03) [nhhc_danfs]
- Locator
- DANFS Guardfish (SS-217) page, fifth-war-patrol paragraph
- Finding type
- historical_record
- Finding
- DANFS's history of USS Guardfish (SS-217) - the submarine with which SC-761 rendezvoused for the July 1943 coastwatcher recoveries per ev-07 - records her fifth war patrol: 'Departing Brisbane for the same waters 25 May 1943, Guardfish sank 201-ton freighter Suzuya Maru and damaged another before being forced down by aircraft 13 June. She picked up a surveying party on the west coast of Bougainville 14 July and returned to Brisbane for refit 2 August 1943' - confirming Guardfish was operating in the Bougainville/Solomons sector on shore-party business through the window of SC-761's documented 26 and 29 July rendezvous.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1943-07
- Population
- Guardfish crew; recovered shore parties (July 1943)
- Limitations
- Corroboration at the operation level only: DANFS confirms Guardfish's Bougainville-area patrol window (ending 2 August 1943) but does not name SC-761, the coastwatcher transfers, or the Rendova rendezvous. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-12
-
[14]Robert J. Cressman, The Official Chronology of the U.S. Navy in World War II (NHHC publication), 1943 chapter - HyperWar/ibiblio verbatim transcription (verified live 2026-10-03) [other_primary]
- Locator
- USN-Chron-1943.html, 15 August 1943 entry (Vella Lavella, Solomons paragraph)
- Finding type
- historical_record
- Finding
- The official Navy chronology's 15 August 1943 entry records the operation this hull took part in per ev-05/ev-11: 'Third Amphibious Force (Rear Admiral Theodore S. Wilkinson) lands Navy, Marine, and Army personnel at Vella Lavella, Solomons, thus by-passing enemy positions on Kolombangara, Solomons.' Wilkinson - the officer whose commendation of SC-761 is quoted in ev-07 - commanded the landing force.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1943-08-15
- Population
- Third Amphibious Force crews (August 1943)
- Limitations
- Names the operation and its commander, not the hull - Cressman does not mention SC-761; her participation rests on the memoir synopsis and the campaign-credit table. ibiblio/HyperWar is the standard verbatim-transcription mirror for the NHHC-published chronology. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-13
-
[15]Era inference built on: NARA-authored Unwritten Record blog (wooden 110' SC put into production for WWII); NavSource spec block (GM 8-268A diesels, no steam plant); class-article construction data (438 boats, 1941-44); GAO HRD-80-2 Navy asbestos-era documentation (ev-15) [other_primary]
- Locator
- NARA Unwritten Record 'Spotlight: Submarine Chasers' (26 Apr 2016); NavSource specifications block; shipyards.json (no W. A. Robinson entry)
- Finding type
- asbestos_application
- Finding
- A wooden-hulled, diesel-powered 110' submarine chaser built 1942 sits inside the Navy's documented asbestos-use era but at the low end of its material intensity: no boilers, no steam lines, no turbine lagging - the dominant shipboard asbestos pathways do not exist on this hull type. Era-standard diesel-craft applications aboard a boat of this type and period were engine and exhaust lagging, machinery gaskets, valve packing, and electrical/wiring insulation in a small wooden hull volume.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-unknown
- Population
- W. A. Robinson yard construction trades (1942); crew (1942-45); Mare Island decommissioning workforce (Nov-Dec 1945); NDRF custody workforce (1948-?); disposal workforce (unknown date)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for SC-761/PC-761 (the surviving war diaries and deck logs were cataloged but not read; they are the plausible primary source). Names era-standard applications, not confirmed installed materials; no quantity. The wooden-hull type plausibly carried materially less asbestos than steel steam vessels of the same era - an inference about degree, not an exemption claim. No manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-14
-
[16]National Archives, The Unwritten Record (NARA staff blog), 'Spotlight: Submarine Chasers' (26 April 2016) - RG 19 engineering-record context for the 110' chaser type (verified live 2026-10-03) [other_primary]
- Locator
- unwritten-record.blogs.archives.gov post, RG 19 drawing links (NAID 28264940, 30010079)
- Finding type
- historical_record
- Finding
- NARA-authored record on the type: '440 of these wooden SC boats were constructed and placed in service during the World War I era. The design proved very effective, and an improved wooden 110' SC was put into production for World War II' - confirming the wooden-hull construction of this hull's class from a government archival source, and pointing to RG 19 Alphabetical Series of Ship Engineering Drawings holdings for the 110' chaser type (NAID 28264940 outboard profile; NAID 30010079).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1944 (WWII production statement)
- Limitations
- Confirms the class's wooden construction - a material-context fact relevant to how much asbestos the type could plausibly carry - but contains no asbestos content and documents the WWI predecessor design directly; the WWII production statement is at type level. The linked NARA catalog records are JS-rendered and could not be independently fetched this session (see search ledger).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-15
-
[17]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) - product-page highlights (firecrawl-rendered, verified 2026-10-03) [gao]
- Locator
- GAO product page HRD-80-2 highlights block (plain curl 403; firecrawl-rendered; 26-page PDF not retrieved)
- Finding type
- gov_survey
- Finding
- GAO's review of Navy asbestos-exposure protection documented that asbestos insulation was in use in Navy ships, and that the Navy's 1975 policy was to remove and replace with nonasbestos materials only insulation that was damaged or had to be removed for repairs - a policy modified in 1979 to selective replacement in high-maintenance areas. The program-level finding places asbestos insulation aboard Navy ships throughout this hull's U.S. service era (1942-45).
- 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. Content via product-page highlights - gao.gov returns HTTP 403 to plain curl but renders under firecrawl; the 26-page full-report PDF was not retrieved. Fieldwork shipyards were Long Beach and Norfolk - not this hull's builder.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-16
-
[18]Batch-8134 search ledger (this record): DANFS compilation; NavSource vessel + class index; shipbuildinghistory yard + production tables; uboat.net; Doscher memoir site (Wayback) + author page; ozatwar compilation; LOC Veterans History Project; NARA Special List 44 + DPLA war-diary/deck-log records; HyperWar ships table + SC-761 stub + Cressman chronology; DANFS Guardfish; NARA blog; GAO product page; NVR check; PCSA class page; AWM collection search; CourtListener (API v4); secondary web sweep [other_primary]
- Locator
- search_ledger rows sl-uss-pc-761-01 through -21
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS SC-761 / PC-761 was found in the public sources searched. CourtListener opinion and docket queries for 'SC-761' and 'PC-761' stayed fleet-pacing-blocked through spaced retries this session - logged blocked in the search_ledger, NOT negative results. No law-firm asbestos-site list hits surfaced for the hull or the builder's yard.
- 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 - a 110' wooden diesel boat simply has few asbestos-relevant systems and generated few paper records; no survey would be expected for a hull this small decommissioned in 1945. The unusually rich primary record for a boat of this class (8 monthly war diaries, full deck logs 1942-45, CO-authored memoir) is cataloged but unread - RG 24/RG 38 materials at College Park are the open leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-761-17