- (1968) Novel: "Through the Dark Curtain".
- (1966) Novel: "The Disoriented Man". NOTE: Filmed as Scream and Scream Again (1970).
- (1958) Novel: "Crime Is My Business". NOTE: Filmed as Murder at Site 3 (1959).
- (1965) Novel (as W. Howard Baker; "Danger Man" series): "Departure Deferred".
- (1967) Novel (as W. Howard Baker): "The Dirty Game".
- (1965) Novel (as W. Howard Baker; "Danger Man" series): "Storm Over Rockall".
- (1968) Novel (as W. Howard Baker): "Brussels Dossier".
- (1967) Novel (as W. Howard Baker): "Rape of Berlin".
- (1966) Novel (as W. Howard Baker): "Night of the Wolf".
- (1966) Novel (as W. Howard Baker): "Every Man an Enemy". NOTE: Part of the Sexton Blake series.
- (1965) Novel (as W. Howard Baker): "The Hero Game".
- (1967) Novel (as W. Howard Baker): "Traitor!".
- (1966) Novel (as W.A. Ballinger; "Sexton Blake" series): "Starlet for a Penny".
- (1965) Novel (as W.A. Ballinger): "I, the Hangman".
- (1965) Novel (as W.A. Ballinger): "The Witches of Nottingham Hill".
- (1966) Novel (as W.A. Ballinger): "Starlet for a Penny".
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