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Danby, Frank (Julia Frankau). The Sphinx's Lawyer, Heinemann (1906), Dedication "To My Brother 'Owen Hall'"; and Stetz, Margaret D. "'To Defend the Undefendable': Oscar Wilde and the Davis Family"Archived 2 October 2011 at the Wayback Machine, The Oscholars Special Issue: "Oscar Wilde, Jews and the Fin-du-Siecle", Summer 2010, accessed 12 January 2013