Bachelor summa cum laude, Columbia University, 1954. Master of Philosophy, Doctor of Philosophy, Columbia University, 1962.
Member faculty, Barnard College and Columbia University, New York City, since 1959; professor political science, Barnard College and Columbia University, since 1968; Janet H. Robb professor social science, Barnard College and Columbia University, since 1980; editor, Political Science Quarterly, since 1973; director Graduate Program in Public Policy and Administration, Columbia University, 1978-1985; chairman Barnard department political science, Columbia University, 1965-1995; president, Academy Political Science, since 1992. Visiting scholar Russell Sage Foundation, 1995-1996.
Member North Tarrytown Zoning Board Appeals, 1970-1971. Member North Tarrytown Board Trustees, 1971-1973, deputy mayor and acting mayor, 1972-1973. Chairman North Tarrytown Planning Board, 1977-1979.
Member New York City Police Commissioner's Research Advisory Board, 1979-1985. Served with United States Naval Reserve, 1954-1956. Member American Political Science Association, Academy Political Science (board directors, president since 1992), Phi Beta Kappa.
Club: University (New York City).
Married Jeanne Benner (divorced). Children: James Christopher (deceased), David Andrew, Anne Leslie. Married Vilma Mairo Bornemann, 1988.
1 child, Lisa Anne.