Agent TypePersonActivities & OccupationsGeologistsHistoryIan Charles Henderson Croll was employed at the Mines Department after graduating B.Sc at the University of Melbourne. During a leave of absence, he was seconded by the Commonwealth Oil Refineries Ltd. as assistant to Dr. K. Washington Gray who was conducting a geological investigation into the possibility of obtaining commercial supplies of petroleum in Australia. In 1936, Croll resumed duty at the Mines Department conducting various geological surveys in Queensland.Search records of this agent
