Michael Jackson's children often appeared in public wearing veils or masks.
Similar to Buddy, Michael Jackson found stardom too much and hid himself and his children from the world. For years, his children hid under veils and no one saw their faces. They were sheltered from the media and schooled by tutors (like Franny). Likewise, Buddy has "disappeared" in Franny and Zooey, and cannot be reached - even by phone.