In 1991 Forrest married Nicola Maurice, daughter of Tony Maurice who was a major figure in the Australian League of Rights white-supremacist Christian organisation. Nicola's sister, Katrina, is the wife of David Thompson who was the leader of the New Zealand League of Rights in the early 1980s and the leader of the Australian League of Rights during the 1990s. Forrest and David Thompson became friendly associates with Forrest appointing Thompson to a managerial role while he was on the board at Anaconda Nickel.