In 1956, Hawke accepted a scholarship to undertake doctoral studies in the area of arbitration law in the law department at the Australian National University in Canberra. Soon after his arrival at ANU, Hawke became the students' representative on the University Council. A year later, Hawke was recommended to the President of the Australian Council of Trade Unions (ACTU) to become a research officer, replacing Harold Souter who had become ACTU Secretary. The recommendation was made by Hawke's mentor at ANU, H.P. Brown, who for a number of years had assisted the ACTU in national wage cases. Hawke decided to abandon his doctoral studies and accept the offer, moving to Melbourne with his wife Hazel.