Roy Herman Propst, a resident of Chapel Hill, North Carolina, died October 1, 2001.  Roy received three degrees from NC State, a BS in 1965, an MS in 1968, and a PHD in 1970.  He was a research associate professor emeritus of biomedical engineering at UNC.  He was survived by a brother, Arlin Lewis, and an aunt, Jeanette Lineberger.