Walpole Society, London
Stourhead, Wiltshire
Calke Abbey, Derbyshire
Horatio (Horace) Walpole, 4th Earl of Orford (1717-1797)
Felbrigg, Norfolk
Dorneywood House and Gardens, Buckinghamshire
Rachael Poole (d.1937)
Belton House, Lincolnshire
Sir Lionel Henry Cust (1859-1929)