Cyril Isaac Woolf was an ear, nose and throat surgeon in Winnipeg, Manitoba, Canada. He was born in the East End of London, into an orthodox Jewish family, the eldest of three sons of Adolph Woolf and Regina Woolf née Frey. He studied medicine in London, qualifying MB BS in 1952. After house posts, he joined the Royal Army Medical Corps for his National Service, as a medical officer in Germany. There he met his future wife, Margaret Gibson, at that time serving as a British Army nursing officer. They married in England in 1956. After leaving the Army, Woolf trained in ENT surgery at the Institute of Laryngology and Otology in London. He then went to Northwestern University, Chicago, USA, as a research fellow. In 1961 he emigrated to Winnipeg, where he practised as an otolaryngologist for 45 years, for 22 of which he was head of otolaryngology at St Boniface Hospital. He was particularly interested in the training of graduate students and made a major contribution to the University of Manitoba's programme in otolaryngology. He also carried out voluntary work, especially in the Northwest Territories, where he made numerous visits to tend to the ear problems of children from indigenous communities. Outside medicine, he was passionate about classical music. He was a talented amateur pianist, and in retirement bought his own concert grand piano. He was also interested in modern languages, and spoke French and fluent German. Cyril Isaac Woolf died at the Victoria General Hospital, Winnipeg, on 3 October 2012 from a stroke. He was 82. He was survived by his wife, their sons Daniel and Jeremy, and grandchildren Sarah, Sam, David and Bridget.