Left to right -

Standing - left to right...
1 Valerie Gamble 2 Eileen Senior 3 ? 4 Enid Williams 5 Nancy Woolley 6 ? 7 ? 8 Janet Fergusson 9 Stephanie Ingram 10 ? 11 Elizabeth Boulton 12 Miss Hall 13 Margaret Armstrong 14 Mrs White 15 Gloria Swithenbank 16 Audrey Wise

Seated - left to right...
17 Monica Brearley 18 Jacqueline Child 19 ? 20 ?