Does bob sheldon have any relatives?

In S.E. Hinton's novel "The Outsiders," Bob Sheldon is portrayed as a troubled character from a wealthy family. He has a close relationship with his parents, who are depicted as somewhat detached and unable to understand his issues. Additionally, he is part of a gang, but specific details about other relatives are not extensively covered in the story. The focus is more on his interactions with the Greasers and his conflict with them.