Records of the Esgair and Pantperthog estates, Merionethshire, and of the Ruck family, comprising deeds and documents relating to lands in Merioneth, Cardiganshire, and Kent, 1509-1939, letters and papers relating to the Plas Gwyn estate, Anglesey, 1659-1822, and Welsh manuscripts of more than one Oliver Morris of Esgair Lleferin, Merioneth, 17 cent.-18 cent.