Pemberton, Max. Sixty Years Ago and After, Internet Archive. Retrieved on 9 February 2024. In this 1936 autobiography, which was published by (Hutchinson & Co. Ltd.), Pemberton provides details about his relationship with both Robinson and his uncle, Sir John Richard Robinson around the turn of the 20th century (pp.124–126).
Stock, Randall. [1], The Baker Street Irregulars. retrieved on 10 February 2024. This article features in the Baker Street Irregulars' manuscript series (A Masterpiece of Villainy, 2021), and it quotes from a letter by H. G. Michelmore, which was published in the Western Morning News, 7 Feb 1949).
Pappas, Stephanie. Curse of King Tut's Tomb Turns 90, Live Science. retrieved on 10 June 2020. " 'As with all celebrity deaths, the story rapidly gathered its own momentum and soon there were reports of sinister goings on,' Tylsdesley said. 'At the very moment of Carnarvon's death all the lights in Cairo had been mysteriously extinguished and at his English home Carnarvon's dog, Susie, let out a great howl and died.' "
