Who hit the longest HR in Fenway Park history?

n Fenway Park, there is a single red seat in the right field bleachers: Section 42, Row 37, Seat 21, that measures 502 feet from home plate. It marks the spot where Ted Williams hit a home run off of Fred Hutchinson of the Detroit Tigers on June 9, 1946, the longest home run in Fenway Park history.see:

http://www.boston.com/sports/redsox/williams/stories/in_right_field_its_a_true_seat_of_power.shtml