1. The Correspondence of John Dewey, 1871–1952, edited by Larry Hickman (Charlottesville: InteLex Past Masters, 2005); quoted as JDC, by document number and date.
2. Anita McCormick Blaine Papers, Wisconsin State Historical Society, Madison.
3. Board of Trustees, Correspondence, University of Chicago, Special Collections Research Center.
4. Brown, Elmer E. (1901) Educational Progress of the Year. Proceedings of the National Education Association, 366–386.
5. Campbell, Jack K. (1967) Colonel Francis W. Parker: The Children’s Crusader (New York: Teachers College Press).