There is a nice article in the latest Opera News magazine (Feb. 2011), a feature article on Paul Groves---with a nice mention of LSU and his Professor Robert Grayson.
Grove’s solidly supported, breathtakingly dulcet lines are a result of first-class training. “My teacher at Louisiana State University was Robert Grayson. Bob is simply a superb musician. Having sung at the New York City Opera, he was able to teach me not only musicianship and vocal technique but also many practical things about daily life in the professional opera world.” Opera News, February 2011, page 17.