Conversation so far:
Where was Buck Clayton from?
Buck Clayton was born in Parsons, Kansas
What was Buck Clayton doing during his early years?
Buck Clayton learned to play the piano from the age of six. His father was an amateur musician, who was responsible for teaching his son the scales on a trumpet.
Did Buck Clayton become popular?
Buck Clayton was a leader of the Harlem Gentlemen in Shanghai.

Question: Around what year did that happen?
Self-contained rewrite: Around what year didBuck Clayton become leader of the Harlem Gentlemen in Shanghai?