From a Washington Post obit by Emily Langer headlined “Melody Miller, trusted assistant to Kennedy family, dies at 77”:

Melody J. Miller was 18 years old, just shy of graduating from high school in Arlington, Va., when President John F. Kennedy invited her to meet him at the White House.

She had recently sculpted a bust of Kennedy in art class, but her work shattered in the kiln. When she painstakingly restored her piece to the president’s likeness, a local newspaper took note of her effort. A clipping of the article reached the president’s desk, and before she knew it, Ms. Miller found herself in the Cabinet Room, her sculpture of Kennedy in tow. Precisely how the visit came about she would not learn for years.