Jacqueline Kennedy Onassis followed her everywhere and nicknamed her "Jackie O". During their marriage, the couple inhabited six different residences: her 15-room Fifth Avenue apartment in Manhattan, her horse farm in New Jersey, his Avenue Foch apartment in Paris, his private island Skorpios, his house in Athens, and his yacht "Christina O". Kennedy ensured that her children continued a connection with the Kennedy family by having Ted Kennedy visit them often. She developed a close relationship with Ted, and from then on he was involved in her public appearances. Aristotle Onassis' health deteriorated rapidly following the death of his son Alexander in a
Aristotle Onassis section. During 1974, the last year of Onassis' involvement with the company, Olympic Airways transported 2.5 million passengers and had a work force of 7,356 persons. At the time, his ownership of Olympic Airways distinguished Onassis as one of only two men in the world to own a private airline, the other being Howard Hughes of TWA. Onassis was involved in the privatization of the Greek national airline and founded the privatized Olympic Airways (today Olympic Air) in 1957. Stocks accounted for one-third of his capital, held in oil companies in the USA, the Middle East, and Venezuela. He also