Jack Holtsmark came to teach in Classics at the University of Iowa in Fall 1963 and was department chair from 1982 through to 1993. Jack published numerous articles over the years on various topics including on Homer, Aeschylus, Theocritus, Lucretius, and Quintilian. Later in his career he became interested in contemporary literature and the Classics, publishing Tarzan and Tradition: Classical Myth in Popular Literature in 1981, Edgar Rice Burroughs in 1986, and articles on classics and contemporary cinema and on detective fiction.