Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
DUNSTAN
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Sax.) From Dun, a hill, and stan, a stone--the stone-hill, or the strong, enduring dun or fortress.
Patronymica Britannica (1860)
DUNSTONE. DUNSTAN. IMore probably from one of the places so called in cos. Lincoln, Norfolk, Northumberland, and Stafford, than from the \vell-knowu A-Sax. personal name.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Origin: Anglo-Saxon
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English