At the time of Griffith's Valuation Alexander Duke was leasing property valued at £8 with almost 300 acres, at Branchfield, barony of Corran, from Jemmet Duke. Lewis records Branchfield as the seat of Rev. William Duke in 1837. Wilson notes Branchfield as the seat of Mr. Duke in 1786, remarking that the ruins of Coolteem Castle are nearby. Branchfield House has been offered for sale in recent times.