1. Ellen Paul Denker, “Forever Getting up Something New” (master’s thesis, University of Delaware, Newark, 1978).
2. A catalog of Victorian virtues taken from Daniel Howe, ed., Victorian America (Philadelphia: University of Pennsylvania Press, 1976), pp. 17–24.
3. Ellen Paul Denker and Bert Denker, in Wendy Kaplan, “The art that is life”: The Arts and Crafts Movement in America, 1875–1920, exh. cat. (Boston: Museum of Fine Arts, 1987), pp. 252–53, no. 110.
4. Garth Clark, Robert Ellison Jr., and Eugene Hecht, The Mad Potter of Biloxi: The Art and Life of George E. Ohr (New York: Abbeville Press, 1989), pp. 68–69.
5. Quoting Raymond Corsini and Alan Auerbach, eds., Concise Encyclopedia of Psychology, 2nd ed. (New York: Wiley, 1996), p. 721.