1. Robert E. L. Masters (1927–2008) was a psychologist, sexologist and psychedelic researcher.
2. Robert W. Masters, professor; wrote plays with Lillian Decker Masters, Michael Miller.
3. Robert Masters, 1713-1798, History of the College of Corpus Christi....
4. Robert J. Masters, Roget's II New Thesaurus.
5. Robert V. Masters, Coin Collecting.