Family History and Genealogy Resources by Surname
Maguire Surname Origin(Origin Gaelic) The son of Guaire, which is the Gaelic for Godfrey. Guaire was son of Alpin, King of Scotland. See Godfrey
Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
Maguire Surname Meaning and Family Facts
There is more to Maguire family history than the origin of your surname:
A Maguire Family History Thought:
'The past isn't dead. It isn't even past.' --William Faulkner