Diogenes Club series "Sherlock". The Diogenes Club has appeared, in various forms, in a great many other settings, most of which take as given the Club's connection to the British Secret Service: Diogenes Club The Diogenes Club is a fictional gentleman's club created by Sir Arthur Conan Doyle and featured in several Sherlock Holmes stories, such as "The Greek Interpreter". It seems to have been named after Diogenes the Cynic (although this is never explained in the original stories) and was co-founded by Sherlock's indolent elder brother, Mycroft Holmes. The club is described by Sherlock Holmes in the story "The Adventure of
William Mycroft is a suggestion that Arthur Conan Doyle derived the name of Mycroft the older brother of Sherlock Holmes from William Mycroft. Conan Doyle was a first-class cricketer who later played for MCC and had a respect for fast bowlers. Mycroft played his last first-class match for MCC in 1886. He umpired four first-class matches before his retirement and later umpired two more during the 1891 season. He died of influenza at the age of 53 in Derby. Mycroft's half-brother, Thomas, played for Derbyshire between 1877 and 1885. William Mycroft William Mycroft (1 February 1841 – 19 June 1894) was an