 ARLINGTON, Va.--BUSINESS WIRE--Graham Holdings Company NYSE: GHC announced today that Tony Allen has been elected to the Board of Directors. Dr. Allen is the President of Delaware State University, one of the most storied Historically Black CollegesUniversities HBCUs in America. Allen serves over 5,000 students and manages a 144 million budget, a 27 million research portfolio and a 40 million endowment. Previously, Allen served as Executive Vice President and Provost for the instituti 