Ó Gealagáin
Ó GEALAGÁIN—I—O Gallegane, O Galgan, Galligan, White; 'descendant of Gealagán' (diminutive of geal, bright, white); originally a Sligo surname, but long dispersed through the south of Ireland.
Alphabetical Index to Irish Surnames
Ó GEALAGÁIN—I—O Gallegane, O Galgan, Galligan, White; 'descendant of Gealagán' (diminutive of geal, bright, white); originally a Sligo surname, but long dispersed through the south of Ireland.
Alphabetical Index to Irish Surnames