James Laughlin--poet, ladies' man, heir to a steel fortune, and the founder of New Directions--was still at work on his autobiography when he died at 83. He left behind personal files crammed with memories and memorabilia: in "M" he is taking Marianne Moore to Yankee games (outings captured here in charming snapshots) to discuss "arcane mammals," and in "N" nearly plunging off a mountain, hunting butterflies with Nabokov ("Volya was a doll in a very...