Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
ALSOP
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Local) From Alsop, Co. Derby, England. One might imagine it a corruption of Ale-shop, a name given to one who kept an ale-shop. A very appropriate name at the present day; for "Alsop's ale" is celebrated all the world over.
Patronymica Britannica (1860)
ALSOP. ALLSOP. This ancient nice were seated at Alsop-in-the-Dale, in Derbyshire, about the time of the Conquest, and there continued in an unijiterruptcd descent for 19 or 20 generations.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
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