Retired racecar driver Merle Bettenhausen has been designated as the Grand Marshal for the Old Timers Reunion .
Retired racecar driver Merle Bettenhausen has been join former racing greats Bob Harkey , Butch Wilkerson , Tom Bigelow , and more for all the festivities .
Retired racecar driver Merle Bettenhausen has been designated as the Grand Marshal for the Old Timers Reunion and join former racing greats Bob Harkey , Butch Wilkerson , Tom Bigelow , and more for all the festivities .