Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
JACOB
As described in historical dictionaries
Patronymica Britannica (1860)
JACOB. JACOBS, The first occurrence of this baptismal name in England, is I think in Domesday. It is now very common as a surname, especially in Jewish families.
Surname type: From given name or forename
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English