Bachelor of Arts, Harvard, 1948.
Editor, public of, Wake, 1945-1954; college traveler, D. Van Nostrand Company, 1948-1950; college traveler, field editor, Ronald Press, 1950-1951; special assistant to editor, Atlantic Monthly, 1952-1954; associate editor, Atlantic Monthly Press, 1954; director, Atlantic Monthly Press, 1955-1964; vice president, Alfred A. Knopf, Inc., 1964; founder, Seymour Lawrence, Inc., 1965; president, editor in chief, Seymour Lawrence, Inc., since 1965.
Fiction juror American Book Awards, 1981. Established The Seymour Lawrence Room of Contemporary Literature, University Mississippi, 1992. Member of Signet Society (Cambridge, Massachusetts).
Harvard (New York City), Century Association (New York City).
Son of Jack and Sophie (Luby) L. M. Merloyd Ludington, June 21, 1952 (divorced February 1984). Children: Macy, Nicholas.