Born at Geelong, Victoria, he was the second son of Victorian-born parents, police constable Thomas Dunn (1884–1953) and his wife Mary Ellen (née Hudson). Tom Dunn had a distinguished police career after joining the force in 1906.
Born in Geelong, Victoria, he was the second son of Victorian-born parents: Thomas Dunn, a former police constable who died in 1953 and his wife Mary Ellen (née Hudson). Tom Dunn had an impressive career with the police after joining in 1906.