John F. Walvoord was president of Dallas Theological Seminary from 1952 to 1986 and served on the school's faculty for fifty years. As one of the most influential theologians of the twentieth century, Walvoord wrote numerous books, including TheRapture Question and The Millennial Kingdom.
Dr. Roy B. Zuck was department chairman and professor of Bible exposition at Dallas Theological Seminary, where he served on faculty from 1973 until 1996. Dr. Zuck wrote or edited more than one hundred books on Christian education and biblical studies. He edited Dallas Seminary's theological journal, Bibliotheca Sacra, for nearly forty years.