Family and estate records, [1165 x 1187]-1946, of the Lloyd family of Aston Hall, near Oswestry, Shropshire, and Foxhall, Denbighshire, and of the Harvey family of Rolls Park, Essex, including title deeds of the Aston Hall and Foxhall estates, mainly in Shropshire and Denbighshire, [1165 x 1187]-1946; cellar books, 1794-1849, game books, 1828-64; over 8,000 family and estate letters, 1642-[c.1906], with over 5,000 addressed to Louisa Lloyd; and records of Shropshire manors including Aston, 1281-1853, Sandford, 1337-1645, Middleton, 1407-1413, Whittington, 1283-1890, and Kinnerley, 1369-1505.

Administrative records of the Brogyntyn estates, mainly in North Wales and Shropshire, [1380s]-1951. They relate to Clenennau, Glyn, Sylfaen and Ystumcegid in Caernarfonshire and Merionethshire, 1530-1902; Nant in Flintshire, [1380s]-1685; Brogyntyn (Porkington) in Shropshire and Llanddyn in Denbighshire, 1634-1951; Lea Hall and Brymbo in Shropshire and Denbighshire, 1586-1750; Abertanat, Cemais and Penrhos, mainly in Montgomeryshire, 1653-[c. 1949]; the Irish estates, 1775-1887, and miscellaneous estates, 1590-1938. The group includes rentals, accounts, leases, and other estate administration papers including those relating to property, exploitation of resources, livestock, staff appointments, enclosures and other improvements, surveys and valuations, and letters relating directly to estate management.

Private letters of the families of Maurice, Owen and Ormsby-Gore of Clenennau and Brogyntyn, 1587-1950, the Godolphin family of Abertanat, 1698-1764 and other individuals who were connected with them by marriage, friendship or official business, 1582-1933, frequently accompanied by copies, drafts or originals of outgoing correspondence and relevant letters from third parties. The range of subjects includes personal and social matters; local government; political news; contemporary national and local events; lawsuits; questions of title and inheritance; trusts; debts, mortgages and other financial matters; family history; the education and careers of individuals; property purchases and estate business in North Wales, Shropshire and Ireland, where this is inseparable from other topics.

Estate and family records of the Lyon, Winder, and Corbett-Winder families of Vaynor Park, Berriew, Montgomeryshire, including title deeds, leases, abstracts of title, and subsidiary documents relating to the Vaynor Park estate in Montgomeryshire and Shropshire, 1459-1977; plans, valuations, and accounts, mainly nineteenth century; particulars and conditions of sale of properties in Montgomeryshire; and accounts of rents of Lord Viscount Herefordshire's estates in Montgomeryshire, Shropshire, Warwickshire, Worcestershire, Pembrokeshire, and Herefordshire, 1740-1751.