The editor lived at
39 Fore Street, St Ives
if anyone had a findmypast sub, they could probably look up who this was. Unfortunately Ancestry doesn't enable search by address.
The Editor was possibly William James Martin (1900-88), brother of the publisher Sydney Robert Martin (1902-89). Both are listed at that address in the 1939 Register, though the latter is incorrectly spelled there as 'Sidney'. SRM married Catharine Boyd in 1941 and thereafter lived in Tunbridge Wells.