Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
BARR
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Celtic. Local) The top or summit of any thing; any thing round. Bar, Gaelic, an old word for a bard or learned man. Bar, local, a bank of sand or earth, a shoal; the shore of the sea. It may be derived from Barre, a town in France, or from Barr, a parish and village in Ayrshire, Scotland.
Patronymica Britannica (1860)
BARR. 1 . A parish and a hamlet in co. Stafford; also a parish in Ayrshire. 2. The gateway of a fortified town. 3. A preDomesd. name Bar, meaning probably either A-Sax. bar, bear, or bar, boar — a sobriquet. De la Bare. H.E.
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