Algunas fuentes indican que se representaron 64 funciones. Según Rees, 1964, p. 78, n.º 7, esto se debe a que no tienen en cuenta que no hubo representación de Thespis el Miércoles de Ceniza. Rees, Terence (1964). Thespis – A Gilbert & Sullivan Enigma(en inglés). London: Dillon's University Bookshop.
Asimov, Isaac. "Fair Exchange?", Asimov's Science Fiction Adventure Magazine, Davis Publications, Inc., Fall 1978, pp. 56–65. Also in Asimov, Isaac (1981). Three by Asimov. New York: Targ Editions. Also in Asimov, Isaac (1983). The Winds of Change and Other Stories. New York: Doubleday. ISBN0-385-18099-3.
Clary (c. 1846 – 30 December 1930) was born and began her career in France, left the stage and married in 1875, and died in England. See Gänzl, Kurt. "Mademoiselle Clary: Sparkeion of Croydon", Kurt of Gerolstein, 9 June 2018
