Oliver, who taught for many years at the University of Illinois, did some solid work in classics, e.g.
- "The First Medicean MS of Tacitus and the Titulature of Ancient Books," Transactions and Proceedings of the American Philological Association 82 (1951)
- Niccolo Perotti's Version of the Enchiridion of Epictetus (Urbana: University of Illinois Press, 1954)
- "The Second Medicean Ms. and the Text of Tacitus," Illinois Classical Studies 1 (1976)