Evidence
4 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-4).
-
[1]National Park Service, National Register of Historic Places multiple property documentation, Historic Resources of Biloxi (Amended Submission) [nps]
- Locator
- Continuation sheet, section E, page 45 (PDF page 49), Westergard/Pitchlynn paragraph
- Finding type
- vessel_history
- Finding
- The National Park Service's Historic Resources of Biloxi nomination identifies Westergard Boat Works in Biloxi as Pitchlynn's builder, says she launched in 1944, and records her service at Philadelphia Naval Shipyard for the remainder of World War II.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1944–1945
- Limitations
- The NPS historic context is a retrospective secondary account within an official nomination. It gives only a launch year and wartime assignment; it does not establish 3 November 1944 entry into service, an April 1960 endpoint, complement, propulsion, or asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pitchlynn-yt283-04
-
[2]Commander in Chief, U.S. Fleet, Navy Department, memorandum of 21 June 1944 on tug classifications, enclosure A (transcribed primary document) [other_primary]
- Locator
- Enclosure A, page 12, PITCHLYNN YT-283 / YTB-283 row
- Finding type
- vessel_history
- Finding
- A 21 June 1944 Commander in Chief, U.S. Fleet memorandum lists PITCHLYNN as YT-283 and recommends YTB-283 in its harbor-tug reclassification enclosure.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1944
- Limitations
- The document proposes a classification change; by itself it does not prove when the change took effect, when this hull entered service, its assignment, machinery, or any asbestos content. The primary document is hosted as a transcription outside a Navy domain.
- Atlas source
- true
- Evidence ID
- ev-uss-pitchlynn-yt283-01
-
[3]U.S. Navy Radio Call Sign Book, section 18, U.S. Navy Ships by Classes (transcribed primary document) [other_primary]
- Locator
- Section 18, page 115, YTB harbor tugs, YTB283 PITCHLYNN NYZD
- Finding type
- vessel_history
- Finding
- A U.S. Navy radio call sign book lists YTB-283 PITCHLYNN with call sign NYZD among large harbor tugs.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- World War II-era publication; precise issue date not verified
- Limitations
- Confirms the Navy used YTB-283 and classified the vessel as a large harbor tug. It does not establish exact service dates, complement, Philadelphia assignment, asbestos products, or exposure. The Navy original is available here as a third-party transcription.
- Atlas source
- true
- Evidence ID
- ev-uss-pitchlynn-yt283-02
-
[4]Batch 9349 search ledger: Navy classification memorandum and radio call sign book; NHHC/DANFS, NARA, NVR and federal asbestos-record searches [other_primary]
- Locator
- search_ledger sl-uss-pitchlynn-yt283-01 through sl-uss-pitchlynn-yt283-08
- Finding type
- historical_record
- Finding
- No ship-specific asbestos document was located in the public official and primary materials searched in this batch; asbestos status remains unknown.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 2026-09-24 research sweep
- Limitations
- This is a bounded search result, not proof that asbestos was absent. Public search indexes may omit paper Navy files, non-digitized records, and later private-vessel maintenance records; no exposure or causation conclusion follows.
- Atlas source
- true
- Evidence ID
- ev-uss-pitchlynn-yt283-03