Why: Sasha & Malia, Barb & Jenna, Chelsea... Amy Carter... ?
Answer: John F. Kennedy, Jr. lived in the White House from January 1961 to November 1963. His dad's funeral procession was held the same day as his 3rd birthday.
Steven Meigs Ford was 17 when his father was inaugurated in August 1974, but he immediately went west, working on the professional rodeo circuit as a cowboy team roper and taking bit parts as an actor.
The More You Know: John Jr.'s brother Patrick Bouvier Kennedy was born August 7, 1963, but died 2 days later in the hospital of hyaline membrane disease (now called infant respiratory distress syndrome).