1. Addams, Jane. The Spirit of Youth and the City Streets. Champaign: University of Illinois Press, 1972.
2. Addams, Jane. Twenty Years At Hull House. New York: Macmillan, 1910; reprint, Signet Classics, 1961.
3. Cooney, Robert, Marty Jezer, and Helen Michalowski, eds. The Power of the People: Active Nonviolence in the United States. Philadelphia: New Society Publishers, 1987.
4. Counts, George S. Dare the School Build a New Social Order? Carbondale: Southern Illinois University Press, 1932, 1978.
5. Cremin, Lawrence A. The Transformation of the School: Progressivism in American Education, 1876–1957. New York: Random House, 1988.