Geoffrey John Lloyd was born on 1 April 1933 in Sheffield. He was the first child of John Arthur Lloyd, a quantity surveyor, and his wife Doris née Matthews. After attending Nether Edge Grammar School he began studying medicine at Sheffield University in 1951, graduating MB,ChB in 1957. While in Sheffield he was mentored by Sir Frank Holdsworth, the orthopaedic surgeon. He moved to Edinburgh as a lecturer in the department of orthopaedic surgery before emigrating to Canada. In 1968 he was appointed associate professor of surgery and acting attendant staff surgeon at the University of Toronto and remained there for 40 years, retiring in 2008. He also worked as an orthopaedic consultant to the Canadian Trauma Consultants organisation, advising on medical legal issues for over 46 years. For his national service he was a captain in the RAMC in Malaya. He married Gill in 1959 and they had a son and two daughters. A lover of the outdoor life, he was a keen supporter of nature conservancy in his adopted country. He died on 25 July 2018, aged 85, survived by his children and grandchildren.