All of John Kennedy's grandparents were the children of Irish immigrants. He also had distant Scottish ancestry (his patrilineal Kennedy line traces back to Scotland, and President Kennedy had Scottish-born ancestors in the 1600s).
John Fitzgerald Kennedy was born on May 29, 1917, at 83 Beals Street, in Brookline, Massachusetts, the United States. He was the second son of nine children born to the multimillionaire business executive and financier Joseph P. Kennedy and his wife, Rose Fitzgerald Kennedy.
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.
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.