The Adventure of Sherlock Holmes' Smarter Brother Sacker, shares a similar name with that originally applied to John Watson, Ormond Sacker. The film's title and premise are a joke referring to the character of Mycroft Holmes, Sherlock Holmes' "older" brother, who was by both of their estimates a good deal smarter than Sherlock. He was, however, too lazy to become a detective, and did indispensable work for the British government. Mycroft was described by Sherlock in conversation with Watson: Mycroft is mentioned briefly in the beginning of the film, which presupposes that Holmes was one of three brothers. Sigerson's name refers to an alias used by Sherlock
Walter C. Mycroft Walter C. Mycroft Walter Charles Mycroft (1890 – 14 June 1959) was a British novelist, screenwriter, film producer and director. In the 1920s he was film critic of the London "Evening Standard", and a founder of the London Film Society, before joining the film industry. In 1928 he became Literary Adviser and Scenario Editor at the newly founded studio British International Pictures at Elstree, sometimes working with his friend Alfred Hitchcock. He was by his own account the principal author of Hitchcock's first BIP film "The Ring" (1927), and credited as the author of the original story on which "Champagne"