Nationality: UK
Birthday: 1852
Appearance: When I first met Holmes, Watson was sallow and emaciated, with only a handful of bones left. Later, my body improved and my weight gradually increased. Milwalton described his medium height, strong body, square chin, thick neck and sideburns.
Personality: Holmes appreciates Watson's enthusiasm, intelligence, down-to-earth, generosity and humor of mischief from time to time.
University: University of London
Marriage: Watson's marriage is not mysterious. He knew mary morstan as early as June 1887 (four signatures and five orange stones are visible), which obviously implies that Watson got married in September 1887 (his wife went home to visit relatives), so he lived with Holmes. Bohemian gossip only mentioned that he got married in March 1888. After Mary died, Watson remarried around 1903.
Occupation: medical practitioner, writer.