Wilhelm Pauck (1901-81) studied with Harnack and Troeltsch at the University of Berlin and became the first foreign student at the University of Chicago in 1925. He joined the faculty in 1926 and was made full professor of Church History in 1931. After twenty-seven years at the University of Chicago, he taught at Union Theological Seminary in New York. After retirement in 1967, he taught at Vanderbilt University for five years, and at Stanford University. His books include From Luther to Tillich: The Reformers and Their Heirs and Paul Tillich: His Life and Thought, the latter of which was co-authored with his wife, Marion Pauck.