Julius and Justina Goodway

Julius and Justina "Julia" Goodway are two twin brothers who're Gustavo's children, Mayor Goodway's nephews, and Grover's great-great-grandchildren.
 * Julius (a boy) - is the son of Gustavo Goodway. He has a twin sister named Justina, and is also the nephew of Mayor Goodway and the great-great-grandson of Grover Goodway.
 * Justina (a girl) is the daughter of Gustavo Goodway. She has a twin brother named Julius. She is also the niece of Mayor Goodway and the great-great-granddaughter of Grover Goodway.