James David Power III WG59, 89, known as J.D. Power, founder of the influential marketing information firm, died on January 23. Born on May 30, 1931, in Worcester, MA, he entered the U.S. Coast Guard after college. Dave married Julie Pierce in 1962; together, they would go on to raise four children and, in 1968, found J.D. Power and Associates. Julie became weakened by the effects of multiple sclerosis in the mid-1990s, and in 2002, the disease claimed her life. Three years later, Dave sold J.D. Power and Associates, consulting for the purchaser, the McGraw-Hill Companies, before retiring. He found love again with the former Joan Heiler, whom he married in 2003.