The DFDA can be contacted by post through the D.F.R. HQ at Norchard. Write to:-

DEAN FOREST DIESEL ASSOCIATION,
c/o Dean Forest Railway, New Mills,
Forest Road,
Near Lydney,
Gloucestershire,
England,
GL15 4ET

Limited e-mail correspondence will be entertained at .....
        dfda.admin AT selg.co.uk

(paste the email address into your email tool and modify the AT to @, removing the spaces either side. This has been done in an attempt to reduce the webcrawlers that seekout email addresses and then bombard them with very annoying spam!