Bent Northrop Memorial Library

In 1963, Noel Perrin, a 35-year-old professor of English at Dartmouth College, bought an 85-acre farm in Thetford Center, Vermont. For the next forty years he spent half his time teaching, half writing, and half farming. "That this adds up to three halves I am all too aware," he said, sounding a characteristic, self-deprecating note of bittersweet amusement at the chalk on his coat, the sweat on his brow, and the mud (and worse) on his boots. "I...