 Active in the southern goldfields from 1865 until their capture, Thomas and John were joined for a time by their brother James and several associates.They were responsible for a reported 71 robberies and hold-ups, as well as the death of at least one policeman; they are also suspected of killing a squad of four policemen looking to bring them in.The Clarkes also murdered one of their own gang members and a man they wrongly assumed was a police tracker, and shot several other victims.