OUR UNKNOWN EX-PRESIDENT: A PORTRAIT OF HERBERT HOOVER (340 pp.) Eugene LyonsDoubleday ($2.95).
In this embarrassingly worshipful biography, Eugene Lyons has set out to portray "the warm, whimsical, and tender Hoover . . . the very human and deeply humane Quaker behind the solemn façade." With a convert's zeal, rightish Political Journalist Lyons, a onetime fellow traveler, also tries to give a more favorable version of Hoover's administration. It is a hard, loving, earnest trybut it doesn't quite come off.
A good part of Lyons' story is convincing. The Quaker boy putting himself through college by delivering laundry, working in a Sierra...