Does anyone remember the name of the school play these characters were rehearsing for and the year it took place?

Roger Rugless in striped trousers and myself second from right (Brian Greenhow) second from right - does anyone remember the names of any of the other actors?

From: Peter Willingham: The "gentleman" in the top hat is David Brackley - another member of Mr Mosley 1950 4A as were Brian, Roger & myself.
No idea what the production was - I would guess it was a 1949/50 effort i.e. in the actors last year at W.T.
With thanks to Brian Greenhow
Amendment thanks to: Peter Willingham