John Chatterton

• American wreck diver. Together with Richie Kohler, he was one of the co-hosts for the History Channel’s Deep Sea Detectives,
  
• Chatterton spent twenty years working as a commercial diver in and around New York City
  
• Chatterton was a member of the first technical diving expedition to Ireland and RMS Lusitania, in 1994.
  
• A few years later, at a depth of 400 feet (120 m), he was the first diver to use rebreather diving technology on the wreck of HMHS Britannic, near the island of Kea in Greece
  
• Chatterton Wiki