Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
HARTSHORN
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
The horn of the hart or male deer; an emblem or sign over a shop or inn, whence the name, "Will at the Hartshorn."
Patronymica Britannica (1860)
HARTSHORN. PLIRTSHORNE. A
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