Steve,Are these the same guys from the other photo?Pete.
Hi Welwyn,the location of your photo is a Bombing & Gunnery School in Canada (there were 11 of them).The aeroplane at the rear is a Fairey Battle Trainer - and a rather unusual one that has been configured with a cut down fuselage glasshouse and fitted with a Bristol turret for gunnery duties.1942 is quite reasonable.Hope this helps.