Mac Giolla Mhir
Mac GIOLLA MHIR—IV—M'Gilver, M'Gilmer, Gilmer, Gilmor; 'son of Giolla mear' (the merry, lively youth); the name of an old family of the Ui Fiachrach race in Co. Sligo, formerly seated in the townland of Finnure, in the barony of Tireragh.
Alphabetical Index to Irish Surnames