It is said that Nicky Driscoll died on the Halloween before the Kennedy assassination, which would be 31 October 1963. Indeed, Angela finds a ticket stub from the dance with that year on it. However, the yearbook she checks to find Nicky Driscoll's picture is the yearbook from the year 1963, which would have been for the year before, for the class of 1963, who would have graduated in May/June of that year. Instead she finds Nicky Driscoll's picture with the phrase "In Memorium" (sic), which would normally appear in the class of 1964's yearbook, since that would come at the end of that school year. Also, the ghost dance in the gym announces that the dance is for the class of '63, another reference to the class that would have already have graduated.