Records of the Morgan family of Tredegar and Ruperra, later barons and viscounts Tredegar including deeds, 14th-20th cent. of the Tredegar, Ruperra, Dderw and Palleg estates in Monmouthshire, Glamorgan and Breconshire which document much of the growth of the towns of Newport and Cardiff in the 19th century; records of the lordship of Wentlloog (Newport) and many Monmouthshire manors, some 14-16 cent., but mainly 17-19 cent.; records of the manor of Brecon and of other manors in Breconshire, 17-19 cent. including the Great Forest of Brecon; records of industrial interests, mainly coal and iron in Glamorgan and Monmouthshire, 18-20 cent.; records of the Tredegar Wharf Company from 1807; and surveys, audit books, rentals, ledgers and leases for the Monmouthshire, Glamorgan and Breconshire portions of the Tredegar estate, 18-20 cent.; papers relating to Nova Scotia and Canada, 1730-1773, mainly of Richard Phillips, Governor of Nova Scotia, 1717-1749; and rentals and leases for the Mile End and Bow estates in London, 19-20 cent.