Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]DANFS, Hannibal (AG-1) entry - construction, service, and disposal narrative + spec block (verbatim transcription at ibiblio/HyperWar; live NHHC DANFS URLs returned 404 on 2026-09-20 - standing NHHC link rot documented since batch-01) [nhhc_danfs]
- Locator
- DANFS Hannibal (AG-1) entry, spec block and full narrative (ibiblio/HyperWar mirror)
- Finding type
- vessel_history
- Finding
- Documented for this hull (DANFS): 'Hannibal (AG-1), a converted steamer, was built as Joseph Holland by J. Blumer & Co., Sunderland, England in 1898; purchased by the Navy 16 April 1898, renamed Hannibal; and commissioned 7 June, Comdr. H. G. Colby in command.' Spec block: dp. 4,000; l. 274'1"; b. 39'2"; dr. 17'7"; s. 9 k.; cpl. 244; a. 1 4", 2 3", 8 .50 cal. mg. Narrative: Collier Service along the Atlantic coast June 1898-May 1908; overhaul 1908; Collier Service New England base ~3 years; decommissioned 15 August 1911; recommissioned 16 October 1911 and assigned to the U.S. Survey Squadron for depth soundings and surveys in preparation for the opening of the Panama Canal; hydrographic surveys in the Caribbean until 1917 (Panama, Nicaragua, Honduras, Cuba); WWI service with the Patrol Force of the Atlantic Fleet; 1918 tender to submarine chasers at Plymouth, England; December 1918 sailed for the Azores via Gibraltar as sub-chaser escort; early 1919 resumed sub-tender duties (England, France, Portugal), returning to the U.S. August 1919; reserve at Philadelphia until 9 February 1921, then Cuba survey operations until 1930; next decade surveyed waters near Trinidad, Venezuela, Costa Rica, and the Canal Zone; WWII service out of Norfolk in the Chesapeake Bay degaussing range; decommissioned 20 August 1944; sunk as a bombing target March 1945.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1898-1945
- Population
- Crew (1898-1944); construction trades at J. Blumer & Co., Sunderland (1898); Navy yard trades during documented overhauls (1908, 1911, 1917-18, 1920-21)
- Limitations
- Ship-specific history only - no asbestos, insulation, or material content anywhere in the entry. Live NHHC DANFS page returned 404 on 2026-09-20; verbatim text via ibiblio/HyperWar transcription. DANFS does not state the 1920 hull-classification date, the stricken date, or the precise grounding date.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-01
-
[2]Shipscribe (Stephen S. Roberts), HANNIBAL (AG-1) class page - compilation from official Navy records (Bureau of Ships data, Navy Registers) [other_primary]
- Locator
- Shipscribe usnaux AG-1 class page - class notes, construction/disposition tables, ship notes
- Finding type
- vessel_history
- Finding
- Design/construction and milestone detail beyond DANFS: classed as Cargo design 1898; displacement 2,179 light / 3,550 full tons; 274.1' oa x 263.3' pp x 39.25' wl; machinery vertical triple expansion, 1 screw, 1,100 HP, 9 kts; launched 9 March 1898, acquired 16 April 1898, commissioned 7 June 1898. Joseph Holland was one of three steamers ordered 1897 by the London firm of Francis Stanley Holland; purchased under the Naval Board on Auxiliary Cruisers program that acquired twenty colliers in April-June 1898; sister-purchase Elizabeth Holland became USS Leonidas (AD-7). Era complements: ~53 Navy (collier, 1898-1908), ~34 civilian (1908-1911), 152 (1916), ~300 (subchaser tender, 1918), 258 (1929). Ordered converted to submarine-chaser tender 27 October 1917; designated miscellaneous auxiliary AG-1 when the standard hull classification scheme was implemented 17 July 1920; reconditioned for survey duty late 1920; full commission Philadelphia 22 January 1921. 1923 survey season assisted by SC-223, SC-353, barges YC-66/YC-268 and an embarked aircraft. WWII: operated out of Norfolk under Commandant, 5th Naval District, in connection with calibration and magnetic survey of vessels on the Chesapeake Bay degaussing range. Decommissioned 20 August 1944; use as a radar bombing target for Patuxent NAS approved 22 September 1944; 'she was to have been salvaged after this use but Navy clerks were later directed to use 3 Mar 45 as the date of her destruction'; wreck used as target until American Mariner (AGM-12) scuttled at the same location 1966.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1897-1966
- Population
- Crew across eras (~53 to ~300 by period); Philadelphia Navy Yard trades (1919-21 reserve/reconditioning, 1944 decommissioning)
- Limitations
- Secondary compilation of official Navy records by a recognized specialist - not itself a primary document; contains no asbestos or insulation-material statement. Clarifies the disposal chain (approval vs clerical destruction date) beyond DANFS.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-02
-
[3]Naval Historical Center (NHHC) Online Library of Selected Images, 'USS Hannibal (1898-1945, later AG-1)' photo-catalog page (ibiblio/HyperWar mirror; NH-numbered photographs incl. NH 99734, NH 761, NH 64966, NH 78195) [nhhc_danfs]
- Locator
- NHC Online Library page text + photo captions (NH 99734, NH 761, NH 64966, NH 78195)
- Finding type
- historical_record
- Finding
- Official photo-catalog narrative: 'Hannibal was classified as a "miscellaneous auxiliary" in July 1920, with the hull number AG-1. Recommissioned some months later, she resumed her survey service early in 1921, primarily operating in the Caribbean. This work continued through the next two decades and lasted into World War II. She was also employed on the Chesapeake Bay degaussing range during the war. In August 1944 the now very elderly USS Hannibal was placed out of commission. She was sunk as a bombing target in March 1945.' Describes her as a 4,000-ton collier completed 1898 at Sunderland as commercial steamship Joseph Holland; photo captions document her at Brest, France 1918-19 (as subchaser tender) and Caribbean survey operations circa 1919-1924.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1898-1945
- Population
- Crew (1898-1944)
- Limitations
- Official-catalog page confirming milestones and the July 1920 AG-1 classification; contains no asbestos or material content. Live NHHC URL returned 404; ibiblio mirror used.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-03
-
[4]Annual Reports of the Navy Department for the Year 1898 (GPO), p. 651 - Appendix to the Report of the Chief of the Bureau of Navigation (war correspondence); corroborated by NHHC Spanish Campaign Medal documentation [other_primary]
- Locator
- Annual Reports of the Navy Department 1898, appendix p. 651 (HathiTrust Record 009993728); corroborating operational histories
- Finding type
- historical_record
- Finding
- Spanish-American War service beyond DANFS's one-line summary: Hannibal participated in the Puerto Rico Campaign and was the collier in the U.S. squadron at Cape San Juan/Fajardo (with monitors Puritan and Amphitrite and armed tug Leyden, Capt. Frederick Rodgers senior officer) in early August 1898, where U.S. ships bombarded Spanish positions and supported the Fajardo landing operation (Battle of Fajardo, 8-9 August 1898). The ship received the Spanish Campaign Medal/badge for 1898 service.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1898
- Population
- Crew (1898)
- Limitations
- PARTIAL verification - the claim traces to the 1898 Annual Reports appendix (p. 651) via consistent secondary citation trails (multiple independently footnoted histories), but the underlying report page was not directly OCR-verified in this pass; HathiTrust holds the digitized volume. DANFS does not mention Fajardo by name. Campaign-medal award documented via NHHC award references as reported in NavSource/NHHC photo captions. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-04
-
[5]Bryan, G. S., 'The oceanographic activities of the Hydrographic Office and the United States Navy during April 1933 to April 1934,' Transactions, American Geophysical Union 15(1):188 (1934); and Pinsel, M. I., 150 Years of Service on the Seas - A Pictorial History of the U.S. Naval Oceanographic Office 1830-1980 (Dept. of the Navy/GPO, 1982), pp. 54, 59 [other_primary]
- Locator
- Bryan 1934 abstract (doi:10.1029/TR015i001p00188); Pinsel 1982 pp. 54 & 59 (archive.org/details/150yearsofservic0001pins)
- Finding type
- historical_record
- Finding
- Hydrographic-service detail beyond DANFS: Bryan (1934) documents USS Hannibal and USS Nokomis conducting surveys in the Gulf of Panama and Panamanian and Costa Rican waters in 1933-34 under Hydrographic Office direction - the Gulf of Panama hydrographic survey was completed in the 1933 season and the area west of the Gulf between Morro Puercos and Burica Point (Panama-Costa Rica boundary) was under development. Per the Naval Oceanographic Office's official pictorial history (Pinsel 1982), in 1933 Hannibal and Gannet were the first U.S. Navy vessels to collect dynamic sounding data (depth and oceanographic data collected in one sounding and analyzed aboard), and Hannibal was replaced by Bowditch in 1940 after 28 years supporting the Hydrographic Office.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1933-1940
- Population
- Survey crew and embarked hydrographic personnel (1933-34); Hydrographic Office staff
- Limitations
- PARTIAL verification - the Bryan abstract was read directly (DOI landing page); the Pinsel content (first dynamic soundings; 1940 Bowditch replacement; 28-year figure) is carried via the official GPO publication's citation trail and was not directly read this pass (archive.org holds the digitized volume). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-05
-
[6]33 CFR 334.200 - Chesapeake Bay, Point Lookout to Cedar Point; aerial and surface firing range and target area, U.S. Naval Air Station Patuxent River, Maryland, danger zones (current eCFR text) [federal_register]
- Locator
- 33 CFR 334.200(b)(2)-(3) - Hannibal Target prohibited area and regulations
- Finding type
- regulatory
- Finding
- The wreck site of this hull remains a named, active Navy danger zone: 'Hannibal Target' is a circular prohibited area of 1,000 yards radius centered at latitude 38deg02'18"N, longitude 76deg09'26"W, closed to navigation at all times; nonexplosive projectiles and bombs are dropped in the target areas; entry requires prior written approval of the Commanding Officer, NAS Patuxent River.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1945-present (regulation current)
- Population
- NAS Patuxent River range personnel (1945-present); transiting mariners excluded
- Limitations
- Regulates the site named for this hull's wreck; the regulation does not itself describe the physical wreck - the visible surface hulk at the site is ex-American Mariner (scuttled 1966), with Hannibal's remains beneath/adjacent. Positional documentation of record (the malformed NavSource coordinate string '076.92.08W' is not a valid longitude; the CFR coordinate controls). No asbestos or hazmat content in the regulation.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-06
-
[7]Franke, K., and Paustenbach, D. J., 'Government and Navy knowledge regarding health hazards of asbestos: A state of the science evaluation (1900 to 1970),' Inhalation Toxicology 23(sup3):1-20 (2011); and 'Asbestos and Ship-Building: Fatal Consequences' (peer-reviewed, PMC2604477) [other_primary]
- Locator
- Franke & Paustenbach 2011 (doi:10.3109/08958378.2011.643417); 'Asbestos and Ship-Building' PMC2604477 (1922 Navy specification passage)
- Finding type
- asbestos_application
- Finding
- Era-level documentation covering this hull's entire service span: peer-reviewed literature records that amosite and chrysotile asbestos were used extensively as insulating materials aboard U.S. naval ships beginning in the 1880s and continuing into the 1950s, and that after the Navy approved amosite asbestos in the mid-to-late 1930s it was required in many shipboard applications; a second peer-reviewed history documents that in 1922 the U.S. Navy specified asbestos (chrysotile for gaskets, insulation, packing, tape; amosite for lightweight insulation) in new submarine construction - establishing that by the 1920s asbestos was a specified Navy shipboard material. Hannibal - a coal-fired steamer with two boilers and a triple-expansion plant - remained in Navy service through 1944 and underwent documented overhauls/conversions (1908, 1911, 1917-18, 1920-21) inside this era. Era-typical asbestos applications aboard such a vessel: boiler and steam-drum insulation, steam-line lagging, valve and flange gaskets, machinery packing, electrical insulation.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-20
- Study period
- 1898-1944 service era; literature 2011
- Population
- Construction/refit trades at Navy yards (1908, 1911, 1917-18, 1920-21 documented yard periods); engineering-plant crew (1898-1944)
- Limitations
- Era inference only - no hull-specific, design-level, or class-level materials document exists for this unique converted merchant steamer, and the cited literature names no individual vessel. The hull's 1898 construction predates the earliest located mandatory Navy asbestos specification (1922, submarine-specific); whether and when era-standard ACM was installed aboard during her many Navy refits is undocumented. Does not establish presence, quantity, location, condition, individual exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-07
-
[8]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - establishing that no substitution-era pressure existed during this hull's 1898-1944 construction-and-service period.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-20
- Study period
- 1979
- Population
- Navy shipyard workers (program-level)
- Limitations
- Program-level documentation of mid-20th-century Navy conditions; says nothing specific to this hull and postdates her destruction by decades. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403 - standing across batches); content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-08
-
[9]Batch-623 search ledger (this record): DANFS via ibiblio mirror; NHHC Online Library via ibiblio; Shipscribe AG-1 class page; eCFR 33 CFR 334.200; Bryan 1934 AGU; peer-reviewed era literature; CourtListener API and HTML sweeps (both blocked); web-indexed litigation sweep; NavSource data line [other_primary]
- Locator
- search_ledger rows sl-uss-hannibal-ag1-01 through sl-uss-hannibal-ag1-11
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, environmental record, or qualifying asbestos litigation naming USS Hannibal, Hannibal, or AG-1 was found in the public sources searched. CourtListener could not be searched (API HTTP 429 - 125/day cap saturated, ~13.5-hour retry-after; HTML endpoint returned an empty HTTP 202 challenge), so the litigation sweep is incomplete. The web-indexed sweep surfaced only law-firm marketing vessel lists carrying 'USS Hannibal (1898)'/'USS Hannibal (AG-1)' line items - a banned source class with no case citation behind them - and one name collision: Shields v. United States, 175 F.2d 743 (3d Cir. 1949), which concerns the Liberty ship S.S. Hannibal Hamlin (a different hull) and is a winch-accident maintenance-and-cure case, not asbestos. No docketed matter naming this hull located.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 2026-09-20
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - the hull served 46 years through the Navy's documented asbestos era with multiple refits, and WWI-era/earlier construction material lists are not digitized. The CourtListener litigation sweep is incomplete (throttled) and should be re-run. The hull's remains lie at the Hannibal Target site in Chesapeake Bay - no surviving-hull survey has ever been possible or documented. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-09
-
[10]NARA record-group mapping: RG 24 (Navy deck logs), RG 19 (Bureau of Ships - incl. the documented 19-N-51958 photo series and Secretary of the Navy correspondence on the 1944 target transfer), RG 37 (Hydrographic Office survey records), RG 181 (Philadelphia Navy Yard records) [other_primary]
- Locator
- NARA Guide to Federal Records - RG 24 (deck logs), RG 19 (Bureau of Ships), RG 37 (Hydrographic Office), RG 181 (naval districts and shore establishments); record-group level only, no box-level retrieval
- Finding type
- historical_record
- Finding
- Archival leads (not retrieved - require research-room work; no spend authorized): RG 24 holds this hull's deck logs across 1898-1944 (colliers' coal-load records, survey stations, degaussing-range duty); RG 19 BuShips records include the NARA photo series 19-N-51958 and the Secretary of the Navy (Forrestal) correspondence recommending the hull as a radar bombing target for NAS Patuxent River (letter dated 29 September 1944 per the NARA-captioned photo record); RG 37 (Hydrographic Office) holds the survey records this ship generated 1911-17 and 1921-40; RG 181 Philadelphia Navy Yard records cover her 1919-21 reserve/reconditioning and 1944 decommissioning. Any hull materials or insulation documentation would surface in the BuShips/yards correspondence, not in digitized sources.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-20
- Study period
- 1898-1945 records
- Limitations
- Record-group mapping only - no box-level retrieval performed; existence of asbestos-specific documents for this hull is unknown until surveyed in person. The Forrestal-letter detail comes from a NARA photo caption curated on a volunteer archive (NavSource, courtesy Shipscribe) - the underlying document is real but unretrieved. Nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-10
-
[11]NavSource Online, USS Hannibal (AG-1) data line and NARA/NHHC photo captions (volunteer archive; underlying images are official USN/NARA photographs) [other_primary]
- Locator
- NavSource AG-1 data line and photo caption block (incl. RG-19-LCM photo 19-N-51958); Soundings 'Strafing Chesapeake Bay's target ship'; eCFR 334.200
- Finding type
- historical_record
- Finding
- Date discrepancies resolved: (a) final decommissioning - DANFS and Shipscribe give 20 August 1944; the NavSource data line gives 21 August 1944 at Philadelphia. DANFS + Shipscribe control: 20 August 1944. (b) Destruction date - DANFS gives 'March 1945' for the sinking-as-target; Shipscribe documents that use as a radar bombing target was approved 22 September 1944 and that Navy clerks were later directed to use 3 March 1945 as the date of destruction; a Wikipedia infobox states 1 March 1945 without a located primary source. The record carries 'March 1945' for the grounding event and 1945-03-03 as the Navy's recorded disposal date. (c) NavSource's coordinate string '38.02.439 N 076.92.08W' is malformed (76deg92' is not a valid longitude); 33 CFR 334.200's Hannibal Target center 38deg02'18"N 076deg09'26"W is the controlling position. NavSource also documents: departure from Philadelphia 3 November 1944 under tow of USCGC Naugatuck (WYT-92) and Toka (YTB-149) for NAS Patuxent River; grounding on a sand bar ~7 miles east of Point Lookout between Point Lookout and Smith Island; replacement as target by ex-American Mariner in 1966.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-20
- Study period
- 1944-1966
- Limitations
- Corrects publication-level date/position discrepancies; NavSource is a volunteer archive whose data line conflicts with DANFS on the decommission date - official sources adopted. The 3 November 1944 tow-out and grounding detail rests on NavSource-curated captions and reputable-press corroboration (Soundings), not a retrieved Navy movement order. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-hannibal-ag1-11