^Patrick M. Maund with David L. Greene, "Bibliographia Baumiana: The Life and Adventures of Santa Claus," The Baum Bugle, Vol. 43 No. 3 (Winter 1999), pp. 29-33.
^Katharine M. Rogers, L. Frank Baum, Creator of Oz: A Biography, New York, St. Martin's Press, 2002; pp. 24, 28, 51 and ff.
