Son of James Walter Everidge, he was educated at King's College School and King's College Hospital, where he was junior scholar in 1904, senior scholar in 1907 and Alfred Hughes anatomy prizeman. He qualified in 1908, and in 1912 became Sambrooke surgical registrar and surgical tutor at King's College Hospital. During the first world war Everidge served as a surgical specialist in France and was mentioned in dispatches and awarded the OBE. He held the rank of Major RAMC and was subsequently nicknamed "The Major" by several decades of students. After the war Everidge returned to King's as junior urological surgeon, and in 1929, when his chief Sir John Thomson-Walker retired, he became senior urologist and lecturer on urology. Beyond his own hospital he held numerous appointments, including those of consultant to the Queen Alexandra Military Hospital, Millbank and to the London County Council. He was President of the Listerian Society of King's College Hospital 1922-23. During the second world war Everidge was one of the senior staff at Horton Emergency Hospital, and in 1939-40 he was President of the Section of Urology at the Royal Society of Medicine. At the end of the war, when he was due to retire from the staff of King's, Everidge was appointed active consulting urological surgeon and in 1953 the title of emeritus lecturer was conferred on him in recognition of his long and valuable service to the medical school of King's College Hospital. In 1950 he had been made a Fellow of King's College, and he was a member of the Association Internationale d'Urologie. Everidge wrote numerous papers on his specialty and contributed articles to the leading textbooks. For some years he was Chairman of the editorial committee of the *British Journal of Urology*. He was a member of council and a former treasurer of the British Association of Urological Surgeons, but he refused the Presidency because of slight deafness. Everidge was a keen sportsman: in his youth he was an enthusiastic lawn tennis player and later he took up golf and fishing and was a member of the Flyfishers' Club. John Everidge was one of the leading urological surgeons of his time: he was a pioneer in transurethral prostatic surgery from 1927, and played a part in the development of the modern resectoscope. Everidge married Kathleen I Robertson and they had one son and one daughter. He always remained young by keeping up with new surgical procedures and by his liking for student activities, dances and fast cars. He died on 8 June 1955 after a long illness at his home, 7 Wimpole Street, aged 71. Publications: Urinary surgery in *Modern Operative Surgery*, ed G Grey Turner, 2, 1934. Nephroureterectomy, *Proc Roy Soc Med* 1940, 33, 295.