Born on 21 March 1870 at Liverpool, second child and eldest son of Joseph Kellett Smith, MRCS 1860, surgeon to the Stanley Hospital, Kirkdale, and his wife, *née* Dansen. He was educated privately and at University College, Liverpool, then a constituent of the Victoria University, where he served as demonstrator of anatomy for two years. In 1895-96 he was surgeon to the Rhodesia expedition to Central Africa and published accounts of his observations in the *Liverpool Medico-chirurgical Journal* after his return home. For a time he practised in partnership with his father at 23 Russell Street, Liverpool. In 1911 he was practising at Eastbourne, Sussex, as an electrotherapeutist. During the war he served with the rank of captain, RAMC, his commission being dated 9 July 1917. During 1920-23 he was superintendent of the West of England Convalescent Centre, under the Ministry of Pensions, at Saltash, Cornwall. He then qualified as a radiologist and settled in practice at 1 Lypiatt Terrace, Cheltenham, becoming consulting radiologist to the Tewkesbury and Bourton-on-the-Water Hospitals. He had a large and successful practice, and was at work till within a few days of his death. Kellett Smith's first wife died about 1902, leaving two infant daughters who survived their father. In 1915 he married a Belgian lady, Marie-Jacqueline Hubin, who survived him with one son, Dr Stanley Kellett-Smith, MRCS, who was serving in the RAMC at the time of his father's death, and had been educated at St Thomas's Hospital. Kellett Smith died in a nursing home, after a very short illness, on 23 September 1942, aged 72. He was of a vigorous and genial nature. Publications: Malaria in Central Africa. *Lpool med-chir J* 1897, 17, 422. Diseases among natives of the Nyasaland plateau. *Ibid* 1901, 21, 46. Black-water fever. *Lancet*, 1898, 1, 780. Symmetrical partial detachment of the finger nails from their matrices. *Brit med J* 1898, 1, 552. *Lateral curvature of the spine and flat-foot, and their treatment by exercises*. Bristol, Wright, 1911. Painful sacralisation of fifth lumbar vertebra. *Clin J* 1926, 55, 445. Note on proto-duodenitis, with Arthur Tom, MRCS. *Brit med J* 1933, 1, 862.