Before he was a writer, Conan Doyle worked in this profession, like Watson
However, he later wrote to Doyle: "You are yourself 
Sherlock Holmes and ... worked as a detective for twenty-three years, with 
physician John Watson .... During his career, Holmes works for the most powerful 
monarchs and... [DOC] [TLE] Dr. Watson - Wikipedia [PAR] John H. Watson, known as Dr. Watson, is a fictional character in the Sherlock 
Holmes stories by Sir Arthur Conan Doyle and was the narrator in the original 
stories.