Ian Potts was a consultant urologist in Sydney. He was born in Sydney on 30 September 1921, the son of Theodore Kenneth Potts and Violet Mary Potts née Canning. His father, uncle, brother, nephew and cousin were all doctors. He was educated at Newington College, where he was *dux*, and then went on

Bruce Pearson was born in Cairns, Queensland, on 29 July 1926, the son of Dr Henry Roy Pearson, a general practitioner with a special interest in obstetrics, and Louisa Agnes Crum. He went to Armidale High School, Perth Modern School and Sydney University, where he represented his school and college