Kenneth Johns was a collective pseudonym used for a collaboration with author John Newman.
Some bibliographies list Adam Hardy as one of Harknett's pseudonyms, in fact a nom de plume of Kenneth Bulmer.
John Kenneth Galbraith | Kenneth Branagh | Kenneth McClintock | Kenneth Grahame | Kenneth Cole | Kenneth Burke | Kenneth "Babyface" Edmonds | Kenneth Williams | Kenneth Noland | Kenneth Clarke | Kenneth T. Jackson | Kenneth Rexroth | Kenneth Hayne | Kenneth Cranham | Kenneth Cole Productions | Kenneth Cockrel, Jr. | Kenneth Anger | Kenneth Tynan | Kenneth Kaunda | Kenneth Baker, Baron Baker of Dorking | Kenneth Armitage | Kenneth More | Kenneth Goldsmith | Kenneth Frampton | Kenneth Fisher | Kenneth Connor | Kenneth Rogoff | Kenneth R. Miller | Kenneth Patchen | Kenneth Nicholls |
Wells wrote under numerous pseudonyms, including Andrew Quiller (with Kenneth Bulmer and Laurence James), James A. Muir, Charles R. Pike (with Kenneth Bulmer and Terry Harknett), William S. Brady (with John Harvey), J. D. Sandon (with John Harvey), Charles C. Garrett (with Laurence James), Richard Kirk (with Robert Holdstock), J. B. Dancer (with John Harvey), and Ian Evans.
Despite that list, Carnell tended to prefer adventure and Hard SF to New Wave experimentation so John Christopher, Kenneth Bulmer, and E. C. Tubb were more typical of his tenure.