First found in county Galway, where they held a family seat from very ancient times.

A massive wave of Irish immigrants hit North America during the 19th century. Although many early Irish immigrants made a carefully planned decision to leave left Ireland for the promise of free land, by the 1840s immigrants were fleeing a famine stricken land in desperation. The condition of Ireland during the Great Potato Famine of the late 1840s can be attributed to a rapidly expanding population and English imperial policies. Those Irish Families that arrived in North America were essential to its rapid social, industial, and economic development. Passenger and immigration lists have revealed a number of early Irish immigrants bearing the name Cahal: Elizabeth Cahill, a bonded passenger, who arrived in America in 1735; Thomas Cahill, an "enforced emigrant" sent to America from Ireland in 1737; Daniel Cahill, who arrived at Marblehead, MA in 1768.

Motto Translated: I trust in the Lord.

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