I found this advert in the 'Croydon Times' dated 18th December 1935: “DEWEY'S, LTD. (Sutton's Music Centre), GROVE ROAD, SUTTON.”
… and I found a mention of Frank Dewey at this webpage:
https://www.suttonmusicfestival.org.uk/history/
“Our own Festival began in February 1928, when Mr. Frank Dewey chaired the first Committee meeting in his Music Shop in Grove Road, Sutton – now the home of Morrisons in the one-way system.”
… and I found a mention of Frank Dewey at this webpage:
https://www.suttonmusicfestival.org.uk/history/
“Our own Festival began in February 1928, when Mr. Frank Dewey chaired the first Committee meeting in his Music Shop in Grove Road, Sutton – now the home of Morrisons in the one-way system.”