Alan,
Thanks for the update. Yes, Miss Smith and Mr Hedderly were the Deputy Head replacements for Miss Edna Humphrey ( who passed away on the day before her 100th birthday) and Mr Richards who both left BGS in 1964.
Miss King/Mrs Penhalluric replaced a Mrs Flanagan who left in December 1962. ( a mere 63 years ago). The only female PE teacher (can't remember her name) that I remember (in 1967) played cricket for England women and thrashed my bowling to the far end of the Hockey pitch). She arranged a hockey match between the senior girls hockey team and the Upper sixth boys. We (the boys) were completely outplayed and had to resort to GBH to sneak a 1-0 win.
Keith