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Jacqueline Kennedy Onassis (1929 - 1994), the wife of Greek shipping magnate Aristotle Onassis and former US first lady, and her son, John F. Kennedy Jr., on a bike ride through Central Park, New York, New York, November 8, 1970. (Photo by Larry Zumwalt/Pictorial Parade/Getty Images)

Jacqueline Kennedy Onassis (1929 - 1994), the wife of Greek shipping magnate Aristotle Onassis and former US first lady, and her son, John F. Kennedy Jr., on a bike ride through Central Park, New York, New York, November 8, 1970. (Photo by Larry Zumwalt/Pictorial Parade/Getty Images)