A.J. Cronin

Cronin, A.J. (1896–1981), British novelist. After quitting the practice of medicine because of ill health, he began to write novels, many of which were turned into films, including Hatter's Castle (1931), The Citadel (1937), and The Keys of the Kingdom (1941). Cronin also wrote an autobiography based on his years of medical practice, entitled Adventures in Two Worlds (1952).