Mac Céile
Mac CÉILE—IV—M'Hely, M'Heile, M'Heale, M'Keale, MacHale; 'son of Céile' (companion); the name of a Mayo family who were erenaghs of Killala and coarbs of St. Caillin at Fenagh, Co. Leitrim. The name has evidently been confused with Mac Héil, which see.
Alphabetical Index to Irish Surnames