Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
HAMMOND
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
Ham-mount, the town or house on the elevation. It may come from Hamon.
Patronymica Britannica (1860)
HAMMOND. Hamo is a well-known Domesd. personal name, which in later times assumed the form of Hamon, Hamond, Hammond.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Surname type: Occupational name
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English