Leon Arthur Allen, American lawyer. Bar: New York 1964, United States District Court (southern and eastern districts) New York 1965. Member of American Bar Association, Association Bar City of New York (chairman administrative law committee 1972-1974), Tuxedo Club (Tuxedo Park, New York ), Union Club (New York City), Racquet & Tennis Club (New York City).
Technology editor McGraw Hill Public Company, New York City, 1958-1962. Construction engineer Gilbert Associates, 1962-1964. Associate LeBoeuf, Lamb, Leiby & MacRae, 1964-1970.
Partner LeBoeuf, Lamb, Leiby & MacRae (name changed to Dewey and LeBoeuf), since 1971. With United States Army, 1956-1958.