I also found this site;
Atlas F1 Bulletin Board - Personal photos from the track
which mentions a "N Grier-Rees" winning a 1,172 formula race in 1957 in a Buckler 90. I'm not certain whether or not it's the same chap.
If you're wondering what a Buckler 90 is;
Ford sidevalve Specials Ashley, Buckler, Falcon, Tornado ++
Buckler Cars - Wikipedia, the free encyclopedia