His father died at the age of 30, when Jack was two years old, and he inherited the family seat of Halston Hall, Whittington, near Oswestry, which was worth £60,000 (£4.3 million as of 2006), as well as an annual income of £10,000 (more than £716,000 as of 2006) from rental and agricultural assets generated by estates of more than 132000 acres at Dinas Mawddwy and in Shropshire.