; children—Karl (deceased), Donald Robert, Marcia Lenore Armstrong. Instructor political science University of Chicago, 1927-1932, assistant professor, 1932-1936. Professor political science Williams College, Williamstown, Massachusetts, 1936-1938, Woodrow Wilson professor government, 1938-1968, Woodrow Wilson professor government emeritus, 1968-1981.
Professor political science Portland (Oregon) State University, 1968-1971. Visiting professor Harvard Summer School, 1938, University of California, 1939, 55, Cornell Univercity, 1944, Columbia, 1946, University of Chicago, 1956, Central Washington College, 1959, Portland State College, 1961, Stanford, 1963, others. Political analyst, for broadcast intelligence service.