Family History and Genealogy Resources by Surname
Hamilton Surname Origin
(Origin Scottish) Originally Hambleton, from the manor of Hambleton, in Buckinghamshire. William, third son of Robert, third Earl of Leicester, took that surname from the place of his birth, as above. He was the founder of the family of that name in Scotland, whither he went about the year 1215. The name is derived from Hamell, a mansion, the seat of a freeholder, and dun, an enclosure, a fortified place, a town.
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.
Hamilton Surname Meaning and Family Facts
There is more to Hamilton family history than the origin of your surname:
A Hamilton Family History Thought:
'Those who forget their past are destined to repeat it.' --Robert A. Heinlein