Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
MARSH
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Teutonic.) Maresche, Morass, a fen, a tract of low, wet land.
Patronymica Britannica (1860)
t" MARSH. A termination of various local surnames, implying j;«?;.?, low and marsh}' ground, as Hindmarsh, Saltmarsh, Titmarsh.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
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