John Vernou Bouvier III

John Vernou Bouvier III ( ; May 19, 1891 – August 3, 1957) was an American Wall Street stockbroker and socialite. He was the father of First Lady Jacqueline Kennedy and socialite Lee Radziwill. He was the father-in-law of John F. Kennedy.
Bouvier was diagnosed with terminal liver cancer in spring 1957. He was hospitalized at Lenox Hill Hospital in Manhattan on July 27, 1957 to have chemotherapy. He died six days later, on August 3, aged 66.