I wonder if he was perhaps Australian or some other non-British, as Philip suggests. Certainly there was much brass band music sent from the UK to Australia at and for a generation before the 1920s - the top Australian bands were playing the same repertoire as top UK bands back into the 19th century - and there was some travel in the other direction, e.g. Frank Wright at a slightly later date. However, I've given the online Australian newspaper archive a few searches (it's a marvellous site, highly recommended if you like that sort of thing), and turned up nothing more than a report of his Three Dale Dances arrangement being used at a contest in Brisbane in 1925. So probably not Australian, I guess. Another possibility - perhaps he was a pseudonym? William Rimmer for example used many pen names. Not sure his scoring is quite like Rimmer's though.