Stourhead, Wiltshire (Accredited Museum)
Hatchlands Park, Surrey (Accredited Museum)
Polesden Lacey, Surrey (Accredited Museum)
Felbrigg, Norfolk (Accredited Museum)
Blickling Hall, Norfolk (Accredited Museum)
Penrhyn Castle, Gwynedd (Accredited Museum)
The Argory, County Armagh (Accredited Museum)
Peckover House, Cambridgeshire (Accredited Museum)
Tredegar, Newport (Accredited Museum)
Borrowdale, Cumbria
Beningbrough Hall, North Yorkshire (Accredited Museum)
Kedleston Hall, Derbyshire (Accredited Museum)
Trerice, Cornwall (Accredited Museum)
Sir Ambrose Macdonald Poynter II (1867-1923)
Plas Newydd, Anglesey (Accredited Museum)
Cliveden Estate, Buckinghamshire