Years before he captained the torpedo boat PT-109, ran for office or set the United States on a path to put a man on the moon, President John F. Kennedy was a troublesome teen whose high jinks nearly got him kicked out of his prestigious boarding school.

The scion of a wealthy Boston family, Kennedy spent his midteens at Connecticut's elite Choate Rosemary Hall, where he excelled at history and literature — but infuriated the school's headmaster by organizing pranks as a member of an unofficial school club known as The Muckers.

Those details of the early life of the 35th president, whose term was cut short by an assassin's bullet in Dallas in 1963, emerge in a new exhibit at Boston's John F. Kennedy Presidential Library and Museum, timed to commemorate the 100th anniversary of his birth on May 29, 1917.