Shewalton House, a plain two-story mansion of 1806 in Dundonald parish, Ayrshire, near the left bank of the Irvine, 1 mile WNW of Drybridge station. The Wallaces owned the estate from at least 1473 till 1715, when it was sold to William Boyle, a brother of the first Earl of Glasgow. His descendant, David Boyle, Esq. (b. 1833; suc. 1874), holds 2344 acres in the shire, valued at £2684 per annum.—Ord. Sur., sh. 22, 1865. Shian, a hamlet in the Glenquaich section of Kenmore parish, Perthshire, near the left bank of the Quaich, 15 miles WSW of Dunkeld.

(F.H. Groome, Ordnance Gazetteer of Scotland (1882-4); © 2004 Gazetteer for Scotland)