Shotline Diving Wreck Profile
- Name: Foolkiller
- Type: experimental submersible or lifeboat
- Year Built: Mid- to late-19th century (speculative, pre-1880s)
- Builder: Unknown
- Dimensions: Length: ~40 ft (12.2 m); Beam: ~6 ft (1.8 m); Depth of hold: Unknown
- Registered Tonnage: Unknown
- Location: Chicago River, Illinois
- Coordinates: Unrecorded; near downtown Chicago riverfront
- Official Number: Unknown
- Original Owners: Unknown
- Number of Masts: None (submersible)
Wreck Location Map
Vessel Type
The Foolkiller is categorized as an experimental submersible or lifeboat, with its exact original function remaining uncertain.
Description
The vessel was discovered completely buried in river mud, described as cigar-shaped and iron-clad, featuring rudimentary conning tower openings. It contained the skeletal remains of a man and a dog, suggesting it sank with occupants inside.
History
Discovered in 1915 by diver William “Frenchy” Deneau during a cleaning and salvage operation in the Chicago River, the Foolkiller sparked public intrigue. Initially thought to be a mysterious lost Civil War-era submarine, it was later theorized to be an experimental lifeboat or submersible escape craft.
Significant Incidents
- 1915: Discovery of the vessel by William “Frenchy” Deneau.
- 1916: The vessel was raised and exhibited at Riverview Park in Chicago.
- Shortly after the exhibit, the vessel vanished without records of sale or destruction.
Final Disposition
The current status of the Foolkiller is unknown, having disappeared after its exhibit in 1916. It is presumed to have been scrapped, sold privately, or destroyed.
Current Condition & Accessibility
The vessel’s condition remains unknown as it has not been located since its disappearance. If rediscovered, it would represent a rare example of midwestern 19th-century submersible technology.
Resources & Links
[shotline_reference_links slug=”foolkiller-1915″ title=”References & Links”]
The Foolkiller remains a key unsolved mystery in Great Lakes and Chicago maritime history, representing experimental submersible technology and the tradition of private inventor subs.
Legacy Notes & Full Historical Record
This section preserves the original unedited Shotline content for this wreck so that no historical detail is lost as we transition to the new logbook format.
Shotline Diving Wreck Profile
- Vessel Name(s): Foolkiller (nickname assigned after discovery)
- Original Name/Type: Unknown; likely experimental submersible or lifeboat
- Approximate Construction Date: Mid- to late-19th century (speculative, pre-1880s)
- Dimensions:
- Length: ~40 ft (12.2 m)
- Estimated Beam: ~6 ft (1.8 m)
- Hull Material: Metal (type undetermined, likely boiler iron or steel)
- Propulsion: Unknown; possibly hand-cranked or treadle-driven propeller
- Rigging: None (submersible)
- Original Function:
- Believed in 1915 to be a 19th-century experimental submarine
- Recent research suggests it was more likely an experimental life boat/submersible escape craft
Location of Discovery:
- Body of Water: Chicago River, Illinois
- Discovery Year: 1915
- Depth at Discovery: Buried in mud below the river bottom
- Exact Coordinates: Unrecorded; near downtown Chicago riverfront
Discovery & Examination (1915)
- Discovered by: William “Frenchy” Deneau, a diver contracted for Chicago River cleaning and salvage.
- Condition:
- Found completely buried in river mud.
- Contained skeletal remains of a man and a dog, suggesting it sank with occupants inside.
- Vessel described as cigar-shaped, iron-clad, with rudimentary conning tower openings.
Initial Public Reaction:
- Chicago newspapers dubbed it the “Foolkiller”, implying the inventor perished in his own contraption.
- Widely reported as a mysterious lost Civil War-era or post-war submarine.
Exhibit & Disappearance
- 1916: Vessel raised and placed on exhibit at Riverview Park, a popular Chicago amusement park.
- Displayed as a curiosity submarine, with admission charged to view the interior.
- Shortly after, the vessel vanished:
- No records of sale, destruction, or return to the river.
- Presumed scrapped or lost to private ownership.
Theories on Origin
- 19th-Century Experimental Submarine
- Fits the cigar-shaped iron hull description.
- Similar to Brutus de Villeroi-style Civil War submersibles or independent inventors’ craft.
- Experimental Lifeboat / Submersible Escape Craft (current leading theory)
- Patent research indicates multiple 1860–1890 “submersible lifeboat” patents from the Great Lakes and Chicago region.
- Possibly an unregistered or failed prototype abandoned after a fatal test.
- Homemade Submarine (“Inventor’s Folly”)
- Media title Foolkiller reinforces the idea that it was privately built, non-military, and unsuccessful.
Casualty & Human Element
- Remains Discovered (1915):
- One adult male skeleton
- One dog skeleton
- Identities: Never determined
- Burial or Memorial: No formal records found; remains likely interred in Chicago potter’s field or disposed after coroner review.
Final Disposition
- Current Status: Unknown (disappeared post-1916)
- Last Known Location: Riverview Park exhibit, Chicago
- Fate: Presumed scrapped, sold privately, or destroyed
Historical Significance
The Foolkiller is a key unsolved mystery in Great Lakes and Chicago maritime history because:
- Represents experimental submersible technology on inland waters before widespread adoption.
- Connects to the tradition of private “inventor subs” that paralleled early U.S. Navy developments.
- The disappearance of the vessel leaves a gap in documentation that complicates verification.
If rediscovered, it would be a rare example of midwestern 19th-century submersible technology, comparable to:
- The Turtle (1775)
- CSS Hunley (1863)
- Other Great Lakes experimental subs, e.g., the 1897 Porcupine (Detroit River)
Resources & References
- Chicago Tribune (Nov. 1915, Feb. 1916) – Foolkiller discovery and Riverview exhibit
- Illinois State Historical Library, Chicago River salvage files
- Riverview Park Archive, Chicago History Museum (archival photos & news clippings)
- Great Lakes Submarine Inventors and Prototypes (1850–1900) – unpublished notes from WHS & NOAA archives