The Irish surname, Callaghan is an anglicized version of Ó Ceallacháin. It is is a diminutive of Ceallach, which means 'bright-headed'.
Michael A. Callahan has written: 'The Callahan's, Sligo to Dakota, 1863' -- subject(s): Irish Americans, Irish Genealogy, Irish Family History, Irish Pedigrees, Irish Ancestors
'Will' is not an Irish word and has no meaning in Irish.
'Colt' is not an Irish word. The Irish word for colt is bromach.
Not an Irish word.
'Brandie' is not a word in the Irish language.
'Late' is a word in English not Irish.
It's not a word in Irish Gaelic.
Ryann is not an Irish word and has no meaning in Irish.
"Tommy" is not an Irish word.
It is not an Irish (Gaelic) word.
"Breck" is not an Irish word.
'Elverys' is not a word in Irish.