Year working: 1970's
Assume that Frank is a psuedonym not a surname? The only art noted is a series of Road Safety illustrations for The Autocar in 1979. These were for a series titled 'AT RISK'. Very much in the style of Gordon Horner who did similar called 'LOOK OUT' in the 1960's.
High Street scene dated 15 September 1979
Port scene dated 15 September 1979