Ronald Thomas Todd was the senior surgeon at Ipswich Hospital, Queensland, Australia. He was born in Brisbane on 16 January 1925, the eldest son of Frederick Edmund Todd, an optometrist, and Rose Emma Todd née Thomas, a business secretary. He attended the Church of England Grammar School, Brisbane,

Ian Irvine Wilson, the son of Leonard and Dorothy Garland Irvine, was born at Wellington, New Zealand, on 10 October 1920. After education at John McGlasher College he went to the University of Otago to graduate in dentistry at the age of twenty-one. After three years in dental practice he returned