Front row: Dave Short, John Townsend, ??, Alan Wood;
Next: Dave Knighton, ??, Malcolm Peter, Dave Morley;
Third: Dave Sleigh, Ian Siddall, Gordon Skidmore, Michael Colley;
Back: Roger Crowson, Steve Marsh, John Moore.
It's the physics lab and would have been Wilf/Willy Mace teaching.
It was taken on a Monday: Moore & Peter in scout uniform; 'A' Troop met on Monday evenings.
(Photo + names courtesy of Michael Colley)