Do you know these Central School girls?

This is Form 1A at the Girls’ Central School in 1948.
There is one missing name S10- Sonja ???
From Left:
Back Row: B1-Veronica Turner; B2-Audrey Thurlby; B3-Irene Rawlinson; B4-Pauline Berridge; B5-Nora Horrigan; B6-Anne Stoppard; B7-Ethel-Reda Sage; B8-Margaret Thompson; B9-Margaret Harby; B10-Janet Tupling; B11- Sylvia Howlett.
Third Row: T1-Kathleen Rossington; T2-Marian Leatherbarrow; T3- Kathleen Broughton; T4-Margaret Whittle; T5-May Neave; T6-Pauline Search; T7-Charmaine Maudaunt; T8-Ann Cook; T9-Lilian Doubleday; T10-Veene Sentence.
Second Row: S1-Audry Phelps; S2-Kathleen Gray; S3-Sylvia Gallagher; S4-Jean Filing; S5-Miss Dixon (Cookery Teacher); S6-Miss Nina Hewitt (Head Teacher); S7-Miss Wainwright (Form Teacher); S8-Rita Fox; S9-Gladys Whatmore; S10-Sonja —-? Front Row: F1-Elizabeth Sellars; F2-Olive Campion; F3-Shirley Wentworth; F4-Janet Smith; F5-Miriam Garner; F6-Cythia Reed; F7-Ann Lepora; F8-Kathleen Featherstone.