Key to photograph. Please help identify the unknowns

Back Row: W. Berry, A.Chorlton, B.Winn, J.Barber, D. Holland, R.Abrahams, P. Woodhall, unknown, M.Black Third Row: unknown, unknown, K. Handford, A.Jones, G.Dawson, B. Greaves, J. Sandlam, unknown, unknown Second Row: unknown, J.Carr, G.Edwards, J. Kensitt, unknown Front Row: C.Shuker, R. Bradburn, unknown, A. Holmes