Sculptor Gilroy Roberts brings the model of LBJ's head for the Presidential Medal; Lady Bird visits Caroline Kennedy's school on third floor of the White House; Lady Bird remembers her mother's death when she was five; Lady Bird spends the afternoon working at The Elms; Stanley Marcus and his daughter, Wendy Marcus, and others have dinner with the Johnsons; Stanley Marcus and Lady Bird discuss art works in the White House, including the picture (of John Audubon)