Custaxie50 and anyinfo : - I found the Allan Dick story you mention by chance when looking for something else.
It was originally in "autoNEWS" April 7 1969, and a photocopy was reprinted in full in "Classic Driver" Issue No 14 along with a story of the accident from Allan Dick.
It's an interesting story, from an interview with Brent, I guess, and covers his life from about age 10 to early 1969. Quite an eventful life even before the racing bug set in.
If you don't find it Custax, let me know.
Stu Buchanan