Who is curly in Of Mice and Men?

Curley - The boss's son, Curley wears high-heeled boots to distinguish himself from the field hands. Rumored to be a champion prizefighter, he is a confrontational, mean-spirited, and aggressive young man who seeks to compensate for his small stature by picking fights with larger men. Recently married, Curley is plagued with jealous suspicions and is extremely possessive of his flirtatious young wife.