Some background details about Derek here ;
http://www.thejournal.co.uk/news/north-east-news/bamburgh-aviation-museum-creator-derek-4442664
and
http://www.thefreelibrary.com/’Aviation+museum+will+be+his+legacy’+Derek+Walton+will+not+be+forg…-a0243327684
I first met Derek in 1974-5 when I joined what was then the North East Vintage and Veteran Aircraft Collection at Usworth Airfield , also as it was then ! Over the years he amassed a huge collection of aviation artefacts and together with Jim Rutland was a leading light in the early years of aviation archaeology particularly in the Cheviot and Pennine areas .
A true gent and sadly missed but his legacy lives on within Bamburgh Castle and it is well worth a visit should you ever be in Northumberland .