Perhaps Something More???
If your father was actually:1291451 Sgt Ronald Bertram Carpenter before he was commissioned, you didn't tell us that he was awarded a DFM at the end of his tour with 10 Sqn - the citation for same is impressive and there is no question that the award was 'dished out with the rations'.
Congratulations to him on his 90th - as was said of Titus Oates: A very gallant gentleman.
O-D