Key to photograph. Please help identify the unknowns

Back Row: unknown, unknown, unknown, unknown, J.Lee, P.Douglas 4th Row: unknown, unknown , unknown, B. Bailey, unknown, L. Stones, unknown 3rd Row: unknown, unknown, B Dodd, unknown, unknown, C Olive, C Ball, Sheila 2nd Row: unknown, unknown, unknown, Mrs. Williamson, unknown, unknown, unknown Front Row: unknown, unknown

This black and white photo needs replacing. Please send new one, scanned colour or full grey tones