Maskelyne and Cooke’s twentieth consecutive year at the Egyptian Hall was 1892-1893. According to the book by George Jenness on the Egyptian Hall, Louis Duprez and his trio of Canine Conjurors was new to the Hall on 19 December 1892. Jeness also said that just before Christmas 1892 Douglas Beaufort finished, but the dogs remained on the holiday programme, which also included Arcana, Proper-ganders and Mr. H. Verne. The earliest date for this programme would therefore be just before Christmas 1892.