The time-honored precedent of making a top party politician the Postmaster General of the U.S. got its bow from President Truman. To replace Postmaster General Frank C. Walker, the President appointed jut-chinned, 42-year-old Bob Hannegan, who had risen to the top of the Democratic National Committee in twelve years from a start as a Committeeman in St. Louis' 21st Ward.
But the precedent of appointing professional Army & Navy officers as Presidential aides was broken. President Truman had already replaced Colonel Richard Park Jr. of the regular Army with Colonel Harry H. Vaughan,...