“Many have heard the story of the duck hunter who was stuck in the mud on either Knik or Turnagain arm, in the 1960s or 1970s, depending on who tells it, and was pulled in half by a helicopter, leaving the lower half of his body in the mud. Some locals remember the incident vividly. There is no evidence it ever happened, but the story has become an Alaska legend.”

https://akfatal.net/Dickison.htm