Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
SHIEL
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Local) A river and loch or lake, in the south-west of Inverness-shire, Scotland. Shiels were shepherd's huts, a term used by the Northumbrian Saxons, to denote the temporary shelters of shepherds.
Patronymica Britannica (1860)
SHIEL. See Sheill, and Shield.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Origin: Celtic
Region of origin: British Isles
Country of origin: Scotland
Religion of origin: Christian
Language of origin: Gaelic