The physician's wife, 42-year-old Katheryn Capener, and two others girls, 14-year-old Tiffany Stoker and 14-year-old Tylinn Tilley, survived the disaster and were taken to Logan Regional Hospital.
The two teenagers have since been released from the hospital after being treated for hypothermia, according to local reports.
Capener's wife Katheryn (pictured left) survived the capsizing. Her daughters' friend Sierra Hadley (right), 14, did not make it out of the lake alive
Dr Capener's mother, Pauline, told the Salt Lake Tribune that her son, who was a strong swimmer and a marathon runner, may have died trying to rescue his two children and their friends.