Terry was born and raised in Whyalla on the Spencer Gulf in the State’s north. He attended Whyalla High School and played Australian Rules football with the South Whyalla Football Club. He remains a Life Member of both the Club and the Whyalla Football League.
Prior to entering Parliament, he was a company director for twenty years and his interests have spanned a number of industries but chiefly the retail and property sectors. Terry was elected at the 2002 election.
He is married to Donna and has two children, Courtney and Riley.