Marmaduke Beckwith of Acton married Ann, daughter of the Dynley's of Bramhope Hall
William Beckwith and his heirs acquired the Thurcroft estate ; he is first mentioned as William Beckwith of Thurcroft, esquire, in 1653;they continued at Thurcroft until the early years of the 19th century.
Source:Visitation of Yorkshire, Sir.William Dugdale, A.D. 1665 and 1666
Notes: John Bromhead of Laughton, schoolmaster was left messuages and lands devised to William Beckwith by the will of his uncle, William Beckwith late of Thurcroft, esquire, deceased, in accordance with a trust set up by the will. 1688