"Dick and Doris Goodwin were married for forty-two years and married to American history even longer. Dick was one of the young men of John F. Kennedy's New Frontier, and he both named and helped design Lyndon Johnson's Great Society. Doris was a White House Fellow and worked directly for Lyndon Johnson, later assisting on his memoir. The Goodwins' last great adventure involved opening the more than three hundred boxes of letters, diaries, documents,...