Norbert Guterman (1900–1984) was a scholar, and translator of scholarly and literary works from French, Polish and Latin into English. Born in Warsaw, Guterman attended the University of Warsaw, where he studied psychology. He moved to Paris to study at the Sorbonne, where he continued his studies in psychology, receiving degrees in 1922 and 1923. In the 1930s, Guterman worked closely with French Marxist theorist Henri Lefebvre in popularizing the Marxist notions of alienation and mystification. He published translations of Marx's early works, which were often the first publications of these works in any language. Guterman, who was Jewish, moved to the United States in 1933, where he took on translation work for the Monthly Review, eventually becoming an editor. In 1936 he became an associate member of the Institute for Social Research on the recommendation of Max Horkheimer who held a great deal of respect for him.

Leo Löwenthal (1900 – 1993) was a German sociologist associated with the Frankfurt School. Born in Frankfurt as the son of assimilated Jews, Löwenthal came of age during the turbulent early years of the Weimar Republic. He joined the newly founded Institute for Social Research in 1926 and quickly became its leading expert on the sociology of literature and mass culture as well as the managing editor of the journal it launched in 1932, the Zeitschrift für Sozialforschung. When the Nazis came to power, he fled to the USA. Although Horkheimer, Adorno, and Friedrich Pollock returned to Frankfurt to reestablish the Institute after the war, Löwenthal, like former members Herbert Marcuse, Franz Neumann, Otto Kirchheimer, and Erich Fromm, chose to remain in the United States. After seven years as research director of the Voice of America, and another year at the Stanford Center for the Advanced Study of the Behavioral Sciences, he joined the Berkeley Speech Department in 1956 and shortly thereafter the Department of Sociology.