July 28, 1961 - President Kennedy joined his wife in Hyannis Port, Mass., today to help celebrate her 32nd birthday. Pierre Salinger, White House press secretary, said there would be no party. The schedule calls for the Kennedys to dine alone and for the cutting of a cake. Mrs. Kennedy has been spending the summer in Hyannis Port with her two children, Caroline, 3, and John, who was born last November. Mrs. Kennedy has none of her personal White House staff at Hyannis Port with her. Her last official appearance in Washington was at a state dinner at Mount Vernon on July 11.