Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
SEAMAN
As described in historical dictionaries
Patronymica Britannica (1860)
SEAMAN. In Sussex and Kent, and probably in other counties, this name has been corrupted into Simmons. See Simmons. In the Domesday of Surrey there is a Seman, who held lands before the making of that record. A-Sax. Sae-mann, a sailor.
Surname type: Occupational name
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English