C.S. Lewis (1898-1963)
Atheist turned Christian apologist, C.S. Lewis taught at Oxford University before being elected to the Chair of Medieval and Renaissance Literature at Cambridge University. Lewis is best known for his works: Mere Christianity, Out of the Silent Plant, The Great Divorce, The Screwtape Letters, and The Chronicles of Narnia.
About C.S. Lewis. (n.d.) Retrieved from https://www.cslewis.com/us/about-cs-lewis