Bachelor, University Delaware, 1957. Doctor of Letters (honorary), Middlebury College, 1997.
Acquisitions department, Boston Athenaeum Library., Boston, 1957-1958; assistant to director, Boston Athenaeum Library., Boston, 1959-1968; editor, New York History Society, New York City, 1966-1967; editor, assistant, Alfred A. Knopf, Inc., New York City, 1967-1973; editor, Alfred A. Knopf, Inc., New York City, 1974-1996; senior editor, Alfred A. Knopf, Inc., New York City, since 1996. Book review editor New England Quarterly, Boston, 1959-1966.
Public developer Adult Literature Organization of Rhodesia, Salisbury, 1973-1974. Advisory council Institute Early American History-Culture, Williamsburg, Virginia, 1988-1991.
Married Wendell Douglas Garrett, June 22, 1957 (divorced 1973).