We might need to get the tape measure out. I became principal of Milton Keynes College in May 1988, aged 35 and two months - my date of birth is February 13, 1953. I had been appointed vice-principal of the college in September 1986, aged 33. I think I was the youngest general FE college principal (omitted from your published list), and depending on when Angela's birthday is I may hold the record.
Dr Ann Limb, Founder and chair, Helena Kennedy Foundation.