Norwich, not so weak a link as you might think. The founders of BKS, Messrs. Barnaby, Keegan and Stevens actually started BKS with a DC-3 inherited from Crewsair, they apparently got it in lieu of shares in the company when it started to founder. Hence BKS can trace it origins back to Crewsair in 1952 and indeed they bought their Southend engineering base from Crewsair also.
I don't know if Arthur (who I knew well) flew in command of the Viking, my copy of his book is not available to me until next week, but if the Captain in his painting is as bald as he looks at first sight then he probably did!