Answer
Irish. Jack Kennedy's family originated from Ireland, and he had strong ties to the country throughout his life. His great-grandfather, Patrick Kennedy, emigrated from Ireland to the United States in 1849. Kennedy's father, Joseph P. Kennedy Sr., was born in Boston to Irish immigrant parents. Kennedy's mother, Rose Fitzgerald Kennedy, was also of Irish descent. Kennedy himself was born in Brookline, Massachusetts, and he often visited Ireland during his lifetime.