My memory records that George Jackson in his SP250 never "had a swim in the ditch". In later years he retained his interest in sports cars and as transport drove a Mazda MX5. Model aeroplanes became his main interest.
He was an integral part of the production sports car group of the time, but only raced briefly early on. I attended his funeral a couple of years ago with Charlie Conway and said a few words concerning his motor racing, as no one else attending had acknowledged his motor sport.
Refer my previous post regarding details concerning the one and only SP250 which went swimming. LOL