JThe Fitzgerald family was from the County of Limerick from a village called Bruff. During the potato famine some of the Fitzgerald migrated to America along with so many others to escape the devastating potato famine.
Thomas Fitzgerald, born in Bruff in 1823, and Rose Anna Cox, born in County Cavan in 1835, were the parents of John Francis Fitzgerald, who was born in Boston, Massachusetts, on February 11, 1863
In November 1887, Patrick Joseph "P. J." Kennedy married Mary Augusta Hickey, daughter of James Hickey of Cork, Ireland, and Margaret M. Field, also of Ireland. Their son, Joseph Patrick Kennedy, was born on September 6, 1888 in East Boston. He was John F. Kennedy's father.