some catholic authors

Myles Connolly: Mr. Blue

Rumer Godden: In This House of Brede

Graham Greene: The Power and the Glory, Our Man in Havana, many others

Louis Hemon: Maria Chapdelaine

Bruce Marshall: The World, the Flesh, and Father Smith

Edwin O'Connor: The Edge of Sadness

Flannery O'Connor: various titles

Walker Percy: various titles

Sigrid Undset: Kristin Lavransdatter trilogy, Master of Hestviken series

Evelyn Waugh: Brideshead Revisited, The Sword of Honour Trilogy