Stephen Fry mentions a Scottish master called Jim Bruce who taught history with a Scottish emphasis, and divinity. He had been a prisoner of the Japanese during the Second World War, and died in about 1995.
According to the 1966 Stouts Hill Magazine, he was due to arrive at the school in September 1966, so he was there throughout my final year; but I don't remember him, I suppose because he never taught me.
John has provided this link to a 36-page PDF file written by Mr Bruce about his experiences as a teenage prisoner of the Japanese. He was apparently born in about 1926.