These papers contain drafts, outlines, notes, and manuscripts authored by Horace Meyer Kallen (bulk 1930s-1960s), documenting his career as a founding professor of philosophy at the New School for Social Research (1919-1974). His papers also contain writings by others and research material in the form of offprints and printed journals. Many topics center on religion and his work with Jewish organizations during the 1950s-1960s.