Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 939-packet.md (5 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-789-pc789-pkt-939-packet-md
-
[2]Ships' Data, U.S. Naval Vessels, Vol. II (NAVSHIPS 250-011, Bureau of Ships, 15 April 1945), patrol-vessel section pp. 90-91 - official wartime Navy publication, PC789 hull row [other_primary]
- Locator
- SDB1945v2.pdf printed pp. 84-85 (class block), 90 (machinery table, PC789 row), 91 (builder/keel/launch/commission table, PC789 row)
- Finding type
- vessel_history
- Finding
- Official Bureau of Ships record naming this hull: PC789 - built by Commercial Iron Works, Portland, Oreg.; keel laid 23 Jan 43; launched 13 Mar 43; date of first commission 6 Mar 44; engines H.O.R. RB-99DA, shaft horsepower 2,560, Westinghouse reduction gear, trial displacement 375 tons, trial speed 19.0 knots. Class block for the 173' PC type: length overall 173'8", waterline 170'0", extreme beam 23'0", standard displacement 280-295 tons, full-load displacement 450 tons, maximum limiting draft 7'7", maximum navigational draft 10'10", total accommodations 4 officers and 61 enlisted, ultimate approved armament one 3"/50-cal. dual-purpose mount and one single 40-mm A.A. mount.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- Commercial Iron Works construction trades 1943-44; wartime crew (65 accommodations)
- Limitations
- Official characteristics record, not a materials document - contains no asbestos or insulation information. Its hull-row figures (2,560 shp, 375 t trial, 19.0 kt) differ from the generic class figures NavSource publishes (2x1,440 bhp, 450 t, 20.2 kt); the official hull row is carried and the conflict is logged in gaps. Scanned reproduction hosted at shipscribe.com, not a .gov server.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-01
-
[3]Naval History and Heritage Command photographic record NH 69280, 'Captain Marshall Douglas Ward, USN' [nhhc_danfs]
- Locator
- NHHC NH-69280 catalog caption
- Finding type
- vessel_history
- Finding
- Official NHHC photo caption naming this hull: 'Captain Ward was commissioned in February 1944 and served in USS PC-789 in the North Atlantic until after the end of World War II.' Establishes that PC-789's operating theater was the North Atlantic for essentially the whole of its wartime commission.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1945
- Population
- Wartime crew (Capt. M. D. Ward, commissioned Feb 1944, aboard through war's end)
- Limitations
- Biographical caption for an individual officer - establishes theater of service only; does not identify operations, ports, convoys, or any material condition aboard. No asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-02
-
[4]NavSource Online: Submarine Chaser Photo Archive, PC-789 page (navsource.net - verified live; navsource.org is dead) [other_primary]
- Locator
- PC-789 page - milestone list, specifications block, photo 1201078901 caption, DANFS note
- Finding type
- vessel_history
- Finding
- NavSource record for this hull: laid down 23 January 1943 at Commercial Iron Works, Portland, OR; launched 13 March 1943; commissioned 6 March 1944; struck from the Naval Register 13 December 1946; transferred to the War Shipping Administration in July 1948; fate unknown. Class specifications block (PC-461): displacement 450 t., length 173'8", beam 23', draft 10'10", speed 20.2 kts., complement 65, armament one 3"/50 dual-purpose mount, one 40-mm mount, five 20-mm guns, two rocket launchers, two depth-charge tracks; propulsion two 1,440-bhp Hooven-Owen-Rentschler R-99DA diesel engines, Westinghouse single-reduction gear, two shafts. Photo: winter 1946, Tongue Point, Oregon, moored outboard of two unidentified LCIs and Endymion (ARL-9) prior to decommissioning. Page notes 'There is no DANFS History currently available for PC-789.'
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1948
- Population
- Wartime and reserve-period crew
- Limitations
- NavSource is a volunteer archival compilation, not an official record - its dates are consistent with the official Ships' Data hull row (ev-01). Its generic class spec block (2x1,440 bhp, 20.2 kt, 450 t) conflicts with the official hull-specific Ships' Data row (2,560 shp, 19.0 kt, 375 t trial); official figures carried, conflict logged in gaps. No asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-03
-
[5]NavSource ARL-9 Endymion page, photo 10190904 (US Navy photo) [other_primary]
- Locator
- NavSource ARL-9 page, image 10190904 caption
- Finding type
- vessel_history
- Finding
- U.S. Navy photograph captioned by NavSource: USS Endymion (ARL-9) moored pierside at Tongue Point Naval Station, Astoria, OR, serving as service vessel for small ships of the Pacific Reserve Fleet, Tongue Point Group, April 1946; nested alongside are three LCS(L)(3)s including LCS(L)(3)-116 and USS PC-789. Documents this hull in reserve at Tongue Point in April 1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1946
- Population
- Reserve-fleet caretaker crews, Tongue Point, 1946
- Limitations
- Photo-caption evidence of location and custody status only; no material or asbestos content. Caption wording groups PC-789 with the LCS(L)s alongside Endymion.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-04
-
[6]Shipbuilding History (Tim Colton shipyard lists), 'Commercial Iron Works, Portland OR' - yard history and full production list [other_primary]
- Locator
- Commercial Iron Works page - yard-history paragraph and production-table row 62 (PC-789)
- Finding type
- vessel_history
- Finding
- Yard production record naming this hull: Commercial Iron Works hull number 62 is PC-789, a 463-ton 173-foot US Navy subchaser delivered 6 Mar 1944, disposition 'sold 1948.' Yard history: Commercial Iron Works was started in November 1916 by William T. Casey, Otto J. Hoak and Robert Boogs on a 30-acre site just south of the Ross Island Bridge; it closed in 1946 after building 188 boats during WWII, and the site was sold to Zidell Marine as a ship-dismantling facility.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1916-1948
- Population
- Commercial Iron Works workforce, Portland OR, 1943-44
- Limitations
- Specialist secondary compilation of yard records - consistent with the official Ships' Data hull row. 'Sold 1948' is the yard-list disposition; buyer and subsequent fate are not recorded here or in any located source. No asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-05
-
[7]uboat.net Allied Warships, USS PC-789 (PC-789) - service and command data [other_primary]
- Locator
- uboat.net warship page 8618 - data table and commands section
- Finding type
- vessel_history
- Finding
- Specialist reference record for this hull: ordered 27 Feb 1942; built by Commercial Iron Works, Portland, Oregon; laid down 23 Jan 1943; launched 13 Mar 1943; commissioned 6 Mar 1944; 'End service 30 Apr 1946 - Decommissioned on 30 April 1946.' Wartime commanding officers listed: J. E. Gilbert, USNR (6 Mar 1944 to late 1944); C. L. King, USNR (mid/late 1944 to mid-1945); D. J. Briggs, USNR (mid-1945 to late 1945).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1946
- Population
- Wartime crew and commanding officers
- Limitations
- uboat.net is a respected specialist secondary source, not an official record; the 30 Apr 1946 decommission date rests on it alone (NavSource gives no decommission date) - flagged in gaps. Commanding-officer list covers WWII only. No asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-06
-
[8]NHHC DANFS ship-history index (P section, verified live 2026-10-03) + NavSource PC-789 page note [other_primary]
- Locator
- history.navy.mil DANFS 'p' index (checked live); NavSource 12/010789 note
- Finding type
- historical_record
- Finding
- No DANFS history exists for this hull: the live NHHC DANFS 'P' index contains no PC-789 entry (no patrol-craft hull entries at all), and NavSource's PC-789 page states 'There is no DANFS History currently available for PC-789.' Unnamed WWII patrol craft of this class generally have no DANFS coverage.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a DANFS entry means no official narrative service history exists in that series; it does not indicate absence of archival records (Ships' Data and NHHC photography do carry this hull).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-07
-
[9]GAO, 'Navy Efforts To Protect Workers From Asbestos Exposure,' HRD-80-2 (published 1979-10-18, released 1979-10-22) [gao]
- Locator
- GAO product page HRD-80-2, Highlights section
- Finding type
- gov_survey
- Finding
- Program-level federal documentation of Navy asbestos use: GAO reviewed the use of asbestos in Navy ships, the cost of removing asbestos from Navy ships, and compensation programs; the Navy's 1975 policy was to remove and replace with nonasbestos materials only insulation that was damaged or had to be removed for necessary repairs, modified in 1979 to selectively replace asbestos insulation in high-maintenance areas. Fieldwork yards were Long Beach and Norfolk Naval Shipyards.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1975-1979
- Population
- Navy shipyard workers (program level)
- Limitations
- Navy-wide program context only - does not name this hull or class, does not quantify shipboard asbestos, and fieldwork covered two naval shipyards unrelated to this vessel's construction or inactivation. gao.gov returns 403 to direct automated fetches; product-page highlights text extracted via Firecrawl (rendered) this session.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-08
-
[10]Ships' Data 1945 propulsion block (two H.O.R. RB-99DA diesels, diesel auxiliaries, no steam plant) + class-era asbestos application literature [other_primary]
- Locator
- SDB1945v2.pdf pp. 84-85, 90 (propulsion type); era application list is inference, not sourced to a named document
- Finding type
- asbestos_application
- Finding
- Era/design inference: a 1943-44 PC-461-class patrol craft with an all-diesel plant (two H.O.R. RB-99DA main diesels on two shafts, diesel-driven auxiliary generators - no boilers and no steam system) would have carried era-standard asbestos applications appropriate to a diesel ship: engine exhaust insulation, machinery gaskets and packing, electrical insulation, winch/windlass brake linings, and deck coverings - but not the boiler/turbine lagging and steam-line insulation that dominate asbestos tonnage on steam-driven combatants.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1943-1948
- Population
- Commercial Iron Works construction trades 1943-44; crew 1944-46
- Limitations
- Class/era inference only - NOT a hull-specific finding. No construction drawing, material spec, or survey for this hull was located. Does not quantify material or establish any individual's exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-09
-
[11]Batch-8162 search ledger (this record): NavSource, NHHC photo archives, Ships' Data 1945 (NAVSHIPS 250-011), yard production list, uboat.net, GAO, NARA deck-log index, Atlas yard dataset [other_primary]
- Locator
- search_ledger rows sl-uss-pc-789-pc789-01 through sl-uss-pc-789-pc789-15
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located for PC-789: no hull ACM survey, no abatement contract, no museum or operator hazmat disclosure (the hull was sold out of government service in 1948 and its fate is unknown), and all four CourtListener base queries located no litigation naming this hull - the only 'PC-789' hits are identifier collisions (an Indiana post-conviction docket number, Bacon v. State 79A02-1604-PC-789; and unrelated docket-text fragments in bankruptcy, MDL, and civil dockets), not the vessel (see search_ledger).
- 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 consistent with the class inference may have been present. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-789-pc789-10