Family History and Genealogy Resources by Surname
McGregor Surname Origin(Origin Scottish) The descendants of Gregor, who was the son of Alpin, King of Scotland. A family of great antiquity, and of distinguished ancestors. See Gregor
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.
McGregor Surname Meaning and Family Facts
There is more to McGregor family history than the origin of your surname:
A McGregor Family History Thought:
'The past isn't dead. It isn't even past.' --William Faulkner