T-T, Barry Radley was on 8 ETPS Course in 1949; Rumbelow does not appear,but he may have been a Graduate of USNTPS/USAFTPS/EPNER.
I have a feeling I may have heard of, or met him when learning to fly at Luton FC,in early 60s,as Dizzy was there as well.`Vintage ATCO` may remember; also try `etpsa.org.uk`...