Whats a canary trainer?
The most obvious explanation is that it describes someone who trains canaries, either for legal or illegal uses (example: training canaries to serve as “lookouts” by giving warning chirps when the police show up during the commission of a crime). The explanation members generally prefer is that it’s someone who teaches operatic singers how to sing. Although Arthur Conan Doyle never found any notes in the files of Dr. John Watson which reported any additional details about Wilson, his career and his crime(s), Doyle’s son, Adrian, later addressed the matter in the story, “The Adventure of the Deptford Horror” in his compilation titled “The Exploits of Sherlock Holmes.” (In that story we are told that Wilson’s first name was Theobold.) Nicholas Meyer published his account, “The Canary Trainer,” in 1993, citing a “missing manuscript” located by a computer in the bowels of a major university “where it had collected dust for over half a century.” (The book was a Book of the Month Club select
