Father John L. McKenzie (1910-1991), an Old Testament biblical scholar who taught at Loyola University of Chicago, University of Chicago, Notre Dame and DePaul University, is considered one of the most influential post-WWII scholars who oriented Catholic thinkers toward modern biblical scholarship. Beyond being a prolific writer of books and articles, he was the first Catholic president of the Society of Biblical Literature, and served as president for the Catholic Biblical Association and for Clergy and Laity Concerned.