Here are some links you may find useful.

Bowes Museum
www.bowesmuseum.org.uk

High Force & Raby Castle
www.rabycastle.com

Eggleston Hall Gardens
www.egglestonhallgardens.co.uk

Mickleton
www.teesdalehalls.co.uk/mickleton-village-hall.asp

Teesdale
www.teesdale.co.uk