Dennis Shippey served as the swimming and diving coach at Dobie from 1976 until his retirement in 2004. From 1988 until his retirement, he also served as aquatics coordinator for Pasadena ISD. Shippey produced numerous individual champion and district championship teams, earning several coach-of-the-year honors. His teams’ glory years were 1976–1984, with at least one district title each year from 1982–84. He was named an All-America swimmer by United States Masters Swimming in 2005, one of the few to be honored as an All-American at the high school, collegiate, and masters levels. Shippey served in Vietnam with the 101st Airborne and was a member of the Texas Senior Games Hall of Fame. The Pasadena ISD Aquatic Center is named in his honor.