John Fitzgerald Kennedy was born on May 29 1917, in Brookline, Massachusetts. Both the Fitzgeralds and the Kennedys were wealthy and prominent Irish Catholic Boston families. Kennedy’s paternal grandfather, P.J. Kennedy, was a wealthy banker and liquor trader, and his maternal grandfather, John E. Fitzgerald, nicknamed “Honey Fitz,” was a skilled politician who served as a congressman and as the mayor of Boston. Kennedy’s mother, Rose Elizabeth Fitzgerald, was a Boston debutante, and his father, Joseph Kennedy Sr., was a successful banker who made a fortune on the stock market after World War I. Joe Kennedy Sr. went on to a government career as chairman of the Securities and Exchange Commission and as an ambassador to Great Britain.