David has volunteered at Frogmore since 2012; he has coordinated the Ri sponsored Engineering Master Classes at Frogmore for six years.  He trained as a structural engineering draughtsman and worked in the construction industry for over 30 years. This included running his own company and latterly teaching Construction at the Hertfordshire Centre for Building Studies in St Albans.  In 2001 he switched to teaching in main stream education and on his retirement in 2012 was Head of Careers at Adeyfield School. Since then he has continued to teach part-time at Tring School.