John-Renard writes "Hola,
Muy buenas nochas.
Many of you will know already that from the 17th century our ancestors established themselves in Spain and further afield in the Hispanic world...
At this instance I am however interested in further researching this link and gaining more concrete proof. From work carried out to date it seems that Mac-Crohon is the more common spelling of the surname. Ironically my father still pronounces it as they spell it.
Any further interest or information in this topic would be more than appreciated.
Tógaigí go bog é!