RAF Cardington undated photos and others. Can you help?

From time to time I come across or am sent in photographs of men who at some point arrived at RAF Cardington. They are most often in the form of group photographs. Please take the time to look at these photographs and see if you can confirm the year in which they were taken if undated or if you recognise anyone. Many thanks.

J G Follows Bham undated
BHAM
J G Follows Ashill Rd  Rednal Bham back photo

The photographs above and to the left were bought as a pair but I have no knowledge of any of the individuals shown or the year these images were taken. The only clue is a name and address written on the back (above) and the Flight name: 1B No 1 School of Recruit Training.

Do you recognise anyone here?

No 2 Recruits undated

This image is of an intake at No 2 Recruits Centre - do you recognise anyone?

931 BB Squadron July 5 1941

No 931 (BB) Squadron, Cardington - do you recognise anyone?