THE AMERICAN (337 pp.) Howard FastDuell, Sloan & Pearce ($3).
"Sleep softly . . . eagle forgotten," wrote one Illinois poet, Vachel Lindsay. "The only governor of Illinois sure to be named by remote generations," wrote another, Carl Sandburg. Ex-Secretary of War Newton D. Baker thought him "a genuinely great man"; so did Brand Whitlock, onetime U.S. Ambassador to Belgium; so did, and do, numberless others. The latest to unearth and praise the forgotten eagle is able, young (32), leftist Novelist Howard Fast (The Last Frontier, The Unvanquished, a New Masses assistant editor)....