Key to photograph. Please help identify the unknowns

Back Row: Rosslyn ?, F.McViey, E.Madden, Stella,?, B.Penny, unknown 4th Row: C.Crompton, M.Hill, L.Mason, K.Collinge, unknown, D.Charlton, P.Hunt 3rd Row: P.Mathews, M.Sidebotham, D.Ellison, C.Hurley, C.Needham, unknown, unknown, unknown 2nd Row: unknown, S.Leigh, B.Brown, Miss Vaughan, D.Little, S.Waterhouse, unknown Front Row: unknown, P.Tracey, F.Blohm, J.Hough