Ray Hiebert, who died this week at 91, was a wunderkind journalism professor who became the American University department chair in his early 30s and dean of the University of Maryland's journalism school at 36, building it over many years into one of the nation's top programs, known today as the Philip Merrill College of Journalism. The Kiplinger family got to know this talented nurturer of journalists in the mid-'60s, when W. M.