Kai Lai Chung

K. L. Chung with a group of mathematicians in New York.
Left to right (back row): Masao Nagasawa, Bert Fristedt, and Henry McKean.
Left to right (front row, seated): Unknown, Dan Stroock, Nobuyuki Ikeda, Kai Lai Chung, and William Feller. The photo most likely dates from the early 1960s.