Mag Laithimh
Mag LAITHIMH, Mag LATHAIGH—IV—Maglavey, Maglaghy, M'Glawe, MacGlave, Glaffey, Glavey, and, by 'translation,' Hand; a variant of Mag Fhlaithimh and Mac Laithimh, which see; in use in Longford, Leitrim and Sligo.
Alphabetical Index to Irish Surnames