This is the house where 10-year-old John F. Kennedy lived. The Kennedy's lived in the upscale Riverdale section of the Bronx in the late 1920s. At the Riverdale Country School, Mr. Kennedy was not a star student, and got a D in French. In a 1960 campaign appearance at a Bronx hotel, he boasted of his local roots. “I said up the street that I was a former resident of the Bronx. Nobody believes that, but it is true,” he declared. “No other candidate for the presidency can make that statement." The house is enormous, 20 rooms of stuccoed splendor, set on two acres fringed by pines.