Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
-
[1]U.S. Navy, Dictionary of American Naval Fighting Ships, volume IV, Maquinna entry (digitized original Navy publication) [nhhc_danfs]
- Locator
- Volume IV, Maquinna entry, second paragraph
- Finding type
- vessel_history
- Finding
- DANFS reports wartime service in the Potomac River Naval Command and says Maquinna was struck from the Navy list on 29 October 1946.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-25
- Study period
- 1944-1946
- Limitations
- The entry gives no duty-by-duty activity, decommissioning date, material inventory, asbestos finding, or crew exposure information. Striking is not treated as decommissioning.
- Atlas source
- true
- Evidence ID
- ev-uss-maquinna-yt225-02
-
[2]U.S. Navy, Radio Call Sign Book, section 18 (transcription of original Navy publication) [other_primary]
- Locator
- Section 18, page 18-114, YTB Harbor Tugs Big list, YTB225
- Finding type
- historical_record
- Finding
- The wartime U.S. Navy Radio Call Sign Book lists MAQUINNA as YTB225 with call sign NUTL, independently corroborating the hull identity and reclassified designation.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-25
- Study period
- World War II
- Limitations
- Call-sign listing corroborates identity only; it gives no construction, service, crew, or material data and no asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-maquinna-yt225-03
-
[3]National Archives, Ship Plan Index, MAQUINNA / YT-225 / RG 19 Hull Series / NAID 153716472 [other_primary]
- Locator
- Ship Plan Index table, MAQUINNA / YT-225 row; https://catalog.archives.gov/id/153716472
- Finding type
- historical_record
- Finding
- NARA's Ship Plan Index lists MAQUINNA, YT-225, under RG 19 Hull Series of Ship Engineering Drawings, NAID 153716472. The listed plan file is a targeted archival lead for checking outfitting and insulation specifications.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-25
- Study period
- 1940s plans; indexed 2026
- Limitations
- Only the index entry was reviewed, not the underlying drawings. Their content, any insulation specification, and any asbestos use remain unknown.
- Atlas source
- true
- Evidence ID
- ev-uss-maquinna-yt225-04
-
[4]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- Cartographic Branch and Other Records and their usefulness sections
- Finding type
- historical_record
- Finding
- NARA's research guide identifies RG 19 ship engineering drawings, including S39 insulation and lagging and sometimes S48 piping, as potential sources for vessel asbestos research; it cautions that deck logs and muster rolls provide no direct asbestos evidence.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-09-25
- Study period
- Navy records through 1961
- Limitations
- General research guidance, not Maquinna-specific evidence. It does not establish that the indexed Maquinna drawings contain S39 or S48 sheets or that asbestos was aboard the tug.
- Atlas source
- true
- Evidence ID
- ev-uss-maquinna-yt225-05
-
[5]Batch-9328 search ledger: Navy DANFS volume IV Maquinna entry; Navy Radio Call Sign Book; NARA Ship Plan Index and asbestos research guide [other_primary]
- Locator
- search_ledger rows sl-uss-maquinna-yt225-01 through sl-uss-maquinna-yt225-04; evidence rows 01-05
- Finding type
- historical_record
- Finding
- No Maquinna-specific asbestos statement was located in the reviewed Navy DANFS entry, wartime Navy call-sign listing, NARA Ship Plan Index entry, or NARA asbestos research guide. The plan index identifies drawings but does not disclose their contents.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-25
- Study period
- 2026-09-25
- Limitations
- This is a negative finding only within the explicitly reviewed public sources. It is not proof that Maquinna was asbestos-free, that no records exist elsewhere, or that any person was or was not exposed. The indexed drawings have not been inspected and CourtListener docket searches remain pending.
- Atlas source
- true
- Evidence ID
- ev-uss-maquinna-yt225-06
-
[6]U.S. Navy, Dictionary of American Naval Fighting Ships, volume IV, Maquinna entry (digitized original Navy publication) [nhhc_danfs]
- Locator
- Volume IV, Maquinna entry, first paragraph
- Finding type
- vessel_history
- Finding
- The Navy's DANFS identifies Maquinna as a Cahto-class YT-225 built by John Trumpy & Sons at Gloucester City, New Jersey; launched 30 April 1944; reclassified YTB-225 on 15 May 1944; and commissioned 19 September 1944 under Lt. David Weinig.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-25
- Study period
- 1944
- Limitations
- Vessel chronology and classification only. DANFS does not state asbestos use, an individual exposure, a crew complement, or a decommissioning date; the 29 October 1946 date is a Navy-list strike date.
- Atlas source
- true
- Evidence ID
- ev-uss-maquinna-yt225-01