Family History and Genealogy Resources by Surname
Winthrop Surname Origin
(Locality). A corruption of Winthorp, or Winethorpe, the wine village, from win, wine, and thorp, a village.
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.
Winthrop Surname Meaning and Family Facts
There is more to Winthrop family history than the origin of your surname:
A Winthrop Family History Thought:
'The past isn't dead. It isn't even past.' --William Faulkner