What residential club can be found in the former home of George Mackay of Skibo?
George Mackay of Skibo: George Mackay of Skibo (Skibo Castle) ("c." 1715 – 25 June 1782) was a Scottish lawyer, soldier and politician. Skibo Castle:  It is now operated as The Carnegie Club, a members-only residential club, offering members and their guests accommodation in both the castle and estate lodges, a private links golf course and a range of activities including clay pigeon shooting, tennis and horse riding.
Carnegie Club