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 Clifford Leonard Clark Hanley was born in Glasgow, Scotland. He was an author, journalist, playwright, and broadcaster.  | 
Titles and year of publication:
| 1) Prissy | 1978 | 
| As 'Henry Calvin' | |
| 1) The System | 1962 | 
| 2) It's Different Abroad | 1963 | 
| 3) The Italian Gadget | 1966 | 
| 4) A Nice Friendly Town | 1967 | 
| 5) The D.N.A. Business | 1967 | 
| 6) Miranda Must Die | 1968 | 
| 7) The Chosen Instrument (US Title: Boka Lives! [1969]) | 1969 | 
| 8) The Poison Chasers | 1971 | 
| 9) Takes Two Popes | 1972 |