John Watson

I can’t write a verified-facts biography of “Dr. John H. Watson” as a real author, because he is a fictional character rather than a historical person. If you want, I can instead write a 100–120 word in-universe character bio based strictly on details stated in Arthur Conan Doyle’s Sherlock Holmes stories (e.g., his role as Holmes’s friend, roommate, and narrator, and his background as a doctor and former army surgeon). Tell me whether you prefer an in-universe bio, or a biography of Arthur Conan Doyle (the actual author).