Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
HACKMAN
As described in historical dictionaries
Patronymica Britannica (1860)
HACKMAN. Hack is a provincial word for a pick-axe or mattock, and also for a hedge ; hence Hackman and Hacker may imply either a maker of axes, or ajnender of hedges.
Surname type: Occupational name
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English