Coordinates: 55°30′59″N 4°36′10″W / 55.5164°N 4.6028°W
Orangefield House, previously known as 'Monkton House', was located near the village of Monkton, Ayrshire in the Parish of Monkton and Prestwick in South Ayrshire, Scotland; the settlement borders upon Glasgow Prestwick Airport, for which it served for a while as the control tower.
Monkton House was rebuilt by James Macrae (1684–1746) who had been the President of Madras, 1725–1730 and came back with a fortune amounting to £100,000. He purchased the estate in 1736 and renamed the house 'Orangefield' as he was a great admirer of William of Orange, William III; he died here in 1746 and left the property to his daughter, who married Charles Dalrymple, the sheriff clerk of Ayrshire. He gave a statue of King William to the city of Glasgow which stood at the cross for many years. This statue cost £3,000 at the time.
Macrae's mother, née Gairdner, had been a poor widow, supporting her family by washing and charing for others. James, probably born in Ochiltree, was befriended by a poor joiner, Hugh McGuire, who had married his sister. James's life changing moment was a severe punishment following being caught stealing apples from a local orchard; he decided to emigrate and stowed away aboard a ship and was left Ayrshire for forty years. He became a ship's captain and served as such on a Madras Government mission to Sumatra. He later became Governor of Fort Saint David and finally, in 1725, the President of the Madras Presidency.