found: Library of Congress Manuscript Division for the Papers of Herbert Block, 1863-2002(Donald E. Graham; b. 1945; chief exec. officer, The Washington Post Company, 1991- ; chairman of the board, Wash. Post, 1993- ; grad. 1966, Harvard College; information specialist with the 1st Cavalry Division in Vietnam,1967-68; patrolman, Wash. Metropolitan Police Dept., 1969-70; joined The Washington Post newspaper in 1971 as a reporter and subsequently held several news and business positions at the newspaper and at Newsweek)