The surname of Callahan is based from the Irish surname Ceallach. “Callahan Family History” states that the Irish meaning of Ceallach is “lover of churches” (n.d.). However, “Callahan Surname, Family Crest & Coats of Arms” defines Ceallach as “strife” (n.d.). While the meaning of Callahan may vary, the specific origins are known. Ceallach is directly related to the Ceallachan family. The Ceallachan family is an extremely important family as their family tree contains a King of Munster from the 10th century (“Callahan Surname,” n.d.). The first official record of Callahan is from Kinlea, Ireland. The name spread across Ireland as much of the original Callahan’s land in Kinlea was lost in battles and wars. In order to continue a successful life,
