Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
TOWNE
As described in historical dictionaries
Patronymica Britannica (1860)
TOAVN. TOWNE. A-Sax. tun, an enclosure, homestead. At-Town would becoine Towner. In Cornwall a farm-yard is still called a "town-place." Your ancient Tonmer was not, therefore, what his name sounds to modern ears, but a thorough rustic.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English