Robert L. Calhoun (1896-1983) was Sterling Professor of Historical Theology at Yale Divinity School. He taught at Yale from 1923 until his retirement in 1965. Among his well-known colleagues and students were Roland Bainton, Hans Frei, Jaroslav Pelikan, Robert Wilken, Stanley Hauerwas, James Gustafson, and George Lindbeck. George A. Lindbeck is Pitkin Professor Emeritus of Historical Theology, Yale University. He is author of several books, including The Church in a Postliberal Age (2003) and The Nature of Doctrine (1984).