(Vancouver, WA)  --  Family members are responding to the death of a Vancouver doctor and his adult son during a scuba diving trip in Mexico.  Fifty-seven-year-old Tom Dyehouse and 27-year-old Graeme Dyehouse died Saturday in Cabo San Lucas.  Tom's sister Karyn Dyehouse tells KING-5 Tom loved his job helping his community as a physician at the Family Wellness Center.  Tom's brother Bob Dyehouse calls him a courageous and positive spirit who lived life to the max.