Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
GRAFTON
As described in historical dictionaries
Patronymica Britannica (1860)
GRAFTON. Parishes and places in cos. Chester, Glouccstei-, Hereford, Oxford, Worcester, Warwick, and Northampton. It is from Grafton-Ecgis in the last-named CO. that the Duke of Grafton takes his title.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English