 At its height the business employed about 300 workers, some of them Irish immigrants, and many of whom lived in the stone terraced cottages in the village.Clifford was a township in the old parish of Bramham, in the upper division of the wapentake of Barkston Ash, in the West Riding of Yorkshire.It became a separate civil parish in 1866 as Clifton with Boston, which was split into the civil parishes of Clifford and Boston Spa in 1896.