Party affiliation: Republican
- Associate Jenner & Block, Chicago, 1961-1970, partner, 1970-1988. President Britton Information Systems, Inc., 1991—2006, Britton Data Systems Inc., since 2006. Lecturer DePaul University, 1988.
Commander United States Naval Reserve, 1952-1957. Fellow American College Trial Lawyers. Member American Bar Association (litigation section, antitrust committee, past regional chairman discovery committee 1961), Illinois State Bar Association (chairman Allerton House Conference 1984, 86, 88, chairman rule 23 committee 1985-1987, chairman civil practice and procedure council 1987-1988, antitrust committee), Chicago Bar Association (past chairman federal civil procedure committee, member judiciary and computer law committees, civil practice committee), 7th Circuit Bar Association, Defense Research Institute (committee on aerospace 1984), Michigan Bar Association, Illinois Association Trial Lawyers, Order of Coif, Law Club (Chicago), Racine Yacht Club (Wisconsin), Macatawa Yacht Club (Michigan), Masons, Alpha Phi Mu, Tau Beta Pi.