Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
PIGMAN
As described in historical dictionaries
Patronymica Britannica (1860)
PIGMAN. 1. A dealer in pigs. See anecdote in Eng. Surn. i., 39. 2. A seller of crockery. Jamieson. Quasi piffffi7i-man ; a piggin being a small vessel of wood or earth. 3. A corruption of pike-man.