My Dad went to Hendon County School (The County School in Golders Rise?) and I have a testamonial letter dated 18/06/42 from the Headmaster EW Maynard Potts at the time he left!
Somehow I got into Queen Elizabeth's Boys Grammar School in Barnet in 1957 and proceeded to waste the next 7 years - I left with 5 O levels and no A levels!