Michael Leo Kennedy, always known as Leo, was born in Dublin on 18 July 1903, one of 11 children of a surgeon, Denis Kennedy, who worked at St Vincent's Hospital, Dublin, and Mary, née Langan. Five of his siblings became doctors. He was educated at Belvedere College, Clongowes Wood College and University College, Dublin, where he won gold medals in anatomy and surgery. He qualified in 1926 and, after appointments at St Vincent's Hospital, Dublin, he came to England, where he worked as a resident surgical officer at St Peter's Hospital, London, with John Thomson-Walker and John Swift Joly, and then at the Royal Hospital, Wolverhampton. He was later appointed as a consultant general surgeon with a special interest in urology at Huddersfield Royal Infirmary, where he worked until his retirement. He was particularly interested in transitional cell carcinoma of the bladder as there were two dye manufacturers in the area using beta naphthylamines, a carcinogen. His hobbies included golf and bowls. He married Winifred Shepherd in 1936 and had two sons, Michael and David, both doctors, and one daughter, Jennifer. He died on 18 March 1985. **This is an amended version of the original obituary which was printed in volume 7 of Plarr’s Lives of the Fellows. Please contact the library if you would like more information lives@rcseng.ac.uk**