Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
-
[1]research packet ei-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-overton-dd239-pkt-ei-packet-md
-
[2]Naval History Division, Dictionary of American Naval Fighting Ships, 'Overton (Destroyer No. 239),' official NHHC indexed entry and HyperWar transcription [nhhc_danfs]
- Locator
- DANFS specifications block and opening service paragraph
- Finding type
- vessel_history
- Finding
- DANFS identifies Overton as a Clemson-class destroyer, DD-239, laid down 30 October 1918 at New York Shipbuilding Co., Camden, New Jersey; launched 10 July 1919; and commissioned 30 June 1920. Its DD-239 specifications list complement 122.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1918-1920
- Population
- DD-239 crew (listed complement 122)
- Limitations
- Documents identity, construction and DD complement only; does not state installed materials or asbestos content. Live NHHC URL currently returns 404; the linked transcription is of the Navy-authored entry. The transcription has apparent errors elsewhere, so this row uses facts also visible in NHHC's indexed text.
- Atlas source
- true
- Evidence ID
- ev-uss-overton-dd239-01
-
[3]Naval History Division, DANFS, 'Overton (Destroyer No. 239)' [nhhc_danfs]
- Locator
- DANFS final APD service paragraphs and disposition paragraph
- Finding type
- vessel_history
- Finding
- As APD-23, Overton supported the Kwajalein, Saipan/Tinian, Leyte, Lingayen Gulf and Okinawa operations. DANFS states that she arrived at San Francisco 15 May 1945, was decommissioned 30 July 1945, struck 13 August 1945 and sold for scrapping to Boston Metals Co., Baltimore, on 30 November 1945; it credits eight World War II battle stars.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1944-1945
- Population
- APD-23 crew; scrapping workers not individually identified
- Limitations
- Operational and disposal history only. Sale for scrapping does not document scrapping completion, disposal handling, or asbestos content. The live NHHC page returns 404; HyperWar hosts the transcription.
- Atlas source
- true
- Evidence ID
- ev-uss-overton-dd239-03
-
[4]Naval History and Heritage Command photograph NH 91791, 'USS Overton' [other_primary]
- Locator
- NH 91791 catalog title and description
- Finding type
- historical_record
- Finding
- NHHC's official photograph catalog identifies Overton as APD-23 off the Norfolk Navy Yard, Portsmouth, Virginia, on 19 September 1943, corroborating the post-conversion hull designation and location.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1943-09-19
- Limitations
- Photograph catalog metadata establishes identification, date and location only; it contains no inspection or material finding. The current NHHC page was accessible in search indexing but its live endpoint did not return content during this review.
- Atlas source
- true
- Evidence ID
- ev-uss-overton-dd239-04
-
[5]National Archives, 'Researching Asbestos aboard US Naval Vessel up through 1961' [other_primary]
- Locator
- Beginning Research; General Information Books; Cartographic Branch, Hull Series and S39/S48 codes
- Finding type
- historical_record
- Finding
- NARA's Navy asbestos research guide directs hull-specific work to Bureau of Ships Record Group 19 correspondence, destroyer General Information Books, and engineering drawings filed by hull number, including S39 insulation and lagging and S48 piping material groups. These are leads for DD239 and APD23 record retrieval.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-27
- Study period
- 1918-1945 research scope
- Limitations
- This is a finding aid, not a retrieved Overton file. It identifies where primary hull records may reside and establishes neither an asbestos product nor asbestos exposure aboard this vessel. The cited series were not inspected for this batch.
- Atlas source
- true
- Evidence ID
- ev-uss-overton-dd239-05
-
[6]U.S. Government Publications Monthly Catalog, December 1942, Navy Department specification 'Asbestos, block, cellular (heat insulation)' [other_primary]
- Locator
- December 1942 monthly catalog entry for Navy specification N 20.6/2:A 2d
- Finding type
- asbestos_application
- Finding
- The December 1942 U.S. Government publications catalog lists a Navy Department specification for cellular asbestos block heat insulation, dated 2 November 1942. This establishes a period Navy specification, not installation on Overton.
- Verification
- partial
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-27
- Study period
- 1942
- Limitations
- Catalog entry verified through indexed government text; the large PDF could not be opened in the research browser. The specification itself and an Overton requisition or installation record were not retrieved. No inference of use aboard this hull follows from the specification.
- Atlas source
- true
- Evidence ID
- ev-uss-overton-dd239-06
-
[7]Bounded negative finding from the Batch 3237 source search ledger [other_primary]
- Locator
- search_ledger rows sl-uss-overton-dd239-01 through -07; Batch 3237 report
- Finding type
- historical_record
- Finding
- The reviewed official history, NHHC photograph catalog, NARA finding aid and period specification catalog did not yield a ship-specific asbestos survey, material list, abatement record or product identification for Overton. Ship-specific asbestos documentation remains unknown.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1918-1945
- Limitations
- Negative only within reviewed public sources. NARA hull files were not retrieved and the CourtListener sweep remained blocked by fleet pacing; absence of a located record is not proof that the vessel lacked asbestos or that no exposure occurred.
- Atlas source
- true
- Evidence ID
- ev-uss-overton-dd239-07
-
[8]Naval History Division, DANFS, 'Overton (Destroyer No. 239)' [nhhc_danfs]
- Locator
- DANFS service paragraphs on 1931-1943 reserve status, escort duty and APD conversion
- Finding type
- vessel_history
- Finding
- DANFS records reserve periods beginning 3 February 1931 and 20 November 1937; recommissioning on 26 September 1939; Atlantic escort service; return to Norfolk on 6 August 1943; and conversion/redesignation as high-speed transport APD-23 effective 21 August 1943.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-27
- Study period
- 1931-1943
- Population
- Navy crew and conversion-yard workers; individual assignments unverified
- Limitations
- The conversion and overhaul are documented events, but DANFS does not describe work packages, insulation, asbestos handling or workers' exposures. The live NHHC page returns 404; HyperWar hosts the transcription.
- Atlas source
- true
- Evidence ID
- ev-uss-overton-dd239-02