Muriel Crouch was a consultant surgeon at the Elizabeth Garrett Anderson Hospital, the South London Hospital for Women and Children and Mount Vernon Hospital. She was one of the early female surgeons whose faith as a committed Christian pervaded all that she did. Born in 1914 into a Christian household in Gerrards Cross, Buckinghamshire, her father, Ivor Crouch, was a company director and a leading figure in setting up Christian Fellowships in universities. Others involved in this evangelical movement were the anatomist Jack Aitken of University College London, J W Laing, the building ‘giant’, and Martyn Lloyd-Jones, the medically qualified minister of Westminster Chapel and the former chief assistant to Lord Horder. Her father was also secretary of the British and Foreign Bible Society. Ivor Crouch also used his influence in business circles to bring Jews from Germany before the Holocaust. Her great uncle, George Crouch, went to Australia in 1853 as part of the Victoria gold rush. Muriel was an undergraduate at the Royal Free Hospital, qualifying in the early part the Second World War. During her surgical training she worked at the Royal Free and Oster House emergency hospitals, and then as a senior registrar at the Royal Free and Elizabeth Garrett Anderson hospitals. She worked with Cecil Joll at the Royal Free Hospital, an international expert on thyroid surgery. Joll was of a slightly unpredictable temperament and was partial to female assistants; Muriel Crouch had a beneficial influence on him and he had great respect for her. She and others encouraged him to accept a more prominent role in the teaching of undergraduates. She enjoyed her work as a part-time demonstrator in the anatomy department at the Royal Free Hospital working under Ruth Bowden. It gave her added contact with students in the dissecting room and during tutorials. Her knowledge of the relevant clinical anatomy was appreciated by them. Always supportive of those in training, she was noted for giving generously of her time. She also gave a tenth of her income to support good causes and helped individuals whose circumstances she knew were difficult. She was very supportive of those doctors who wished to work abroad as missionaries. She was a founder member of Tyndale House, Cambridge, a residential Christian community dedicated to Bible study, research and the holding of conferences. It is ideally located within the university complex to aid undergraduate and postgraduate study, in addition to holding regular services of worship. She was also appointed to the London auxiliary committee of the Christian Medical College, Ludhiana, India, now known as the Friends of Ludhiana. Muriel was a fluent lecturer on matters that impinged on medicine and the Christian faith. In a lecture given in 1961, she argued “Specialisation is here to stay, not only in medicine but throughout the whole of our national life”. She emphasised the need to treat patients as individuals as she explored the expansion in knowledge, the increased difficulties in teaching, the influence of finance, increased litigation, and specialisation, with patients drifting from department to department. She ended on a positive note, advocating that patients be treated ‘as a whole’. She wrote on many other topics, including *Imparting ethics to medical students* (London, Christian Medical Fellowship). She expanded her influence as an invited speaker at many of the Bank of England’s Christian retreats. Muriel was a vice president of the Inter-Varsity Fellowship (now the Universities and Colleges Christian Fellowship or UCCF) and also served on the Nurses Christian Fellowship International executive council. For the latter body she went to Stavanger, Norway, in 1967 to give a series of five addresses under the heading ‘The spirit of service’. She was writing very thoughtful articles well into her eighties. In one, she explored the ethics of telling the truth to patients and whether lying was ever a valid option. In her final two years in a residential home in Hunstanton, Norfolk, she became a firm favourite with other residents and carers, and used her medical knowledge to tell her GP what was happening as the end approached. She looked forward to her future ‘afterlife’, free of the restrictions of her failing body. She died in her home on 12 January 2010 at the age of 95. A service of thanksgiving for her very full life which had touched so many was held at the Union Church, Hunstanton, on 19 March 2010, at which Marjorie Foyle and Peter May gave tributes. One of the many from varied backgrounds attending was Felix Kotoney-Ahulu from West Africa, a world expert on sickle cell anaemia, and a great friend and admirer of Muriel.