Assistant state director Massachusetts Federal Writers Project, 1935-1937. Assistant professor of University South Dakot, 1937-1942. Professor Sarah Lawrence College, Bronxville, New York, 1942-1971, professor emeritus, 1971-1974, director Center Continuing Edition and Community Studies, 1965-1969, director emeritus, 1972-1974, director graduate program preparation for college teaching, 1966-1971, also holder Esther Rauchenbush chair.
Visiting professor U. Missouri, 1939-1940, U. Rochester, 1941-1942, Mexican universities, 1944, Cornell Univercity, 1946, Northwestern University, 1947, New School Social Research, 1947, Ruskin College, Oxford, 1952, Salzburg Seminar American Studies, 1953, Hebrew U., 1953, New York University Graduate School, 1958, Experimental College Virgin Islands, 1955. Fulbright professor of University Leeds, U. Cambridge, 1960-1961. Chairman Darwin Anniversary Committee, 1957-1959.
Trustee Sarah Lawrence College, 1959-1961. Social Science Research Council fellow, 1934-1935, 62-63, Newberry Library fellow, 1960, American Council Learned Socs. fellow, 1963.
Author: Bibliography of Horace Mann, 1937. United States: American Democracy World Prespective, 1947. Essays in Teaching, 1950.
Darwin, Wallace Natural Selection, 1958. Religion in Public Schools, 1958. Charles Darwin, Evolution and Nature Selection, 1958.
Making America Democracy, 2d edition., 1960. American History in American Thought, 1972.