Mac Glúin
Mac GLÚIN—IV—M'Clone, M'Cloane, M'Clowne, MacCloone, Clune; 'son of Glún' (knee, probably a 'pet' form of Glúniarainn, iron-knee, or Glúntradhna, corn-crake knee); the name of an old Thomond family who were seated at Ballymacloon, in the parish of Quin, Co. Clare, where the name is still well known.
Alphabetical Index to Irish Surnames