 The improvements at Berkhamsted were for the convenience of Jane Murray, the widow of Secretary Murray, and her young family which included Anne, Lady Halkett and Elizabeth Murray who married Adam Newton's heir, Sir Henry Newton.Cunningham seems to have been involved in the building of a house in Lincoln's Inn Fields now called "Lindsey House", which he sold to Henry Murray (d. 1672), a son of Secretary Murray and a groom of the king's bedchamber, in 1641.A survey of rentals in the Cunninghame district of Ayrshire circa 1640 listed him at £1553, among the largest landowners in the county.