(1966) Written under pseudonym of Walker E. Blake Heartbreak Ridge (1962) Hell on Wheels (1962) The Girl in the Black Bikini (1962) The Loved and the Lost (1962) Once More With Passion (1964) Doing What Comes Naturally (1965) Written under pseudonym of James McM. Douglas Hunger For Racing (1967) Racing to Glory (1969) The Twelve-cylinder Screamer (1971)Drag Race Driver (1971)A Long Ride on a Cycle (1972) Written under the pseudonym of Jack Dugan The Deep Kill (1984) Written under pseudonym of Eden HughesThe Wiltons (1980)The Selkerks (1982) Written under pseudonym of Allison Mitchell Wild Harvest (1983) Wild Heritage (1984) Written under pseudonym of Edmund O. ScholefieldL'il Wildcat (1965)Tiger Rookie (1966)Bryan's Dog (1967)Maverick on the Mound (1968)Yankee Boy (1970) Written under the pseudonym of Blakely St. JamesChristina's Passion (1977) Written under pseudonym of Patrick J. WilliamsReturn to Daytona (1962)Flat Out (1965)Fastest Funny Car (1967)Grad Prix Racing (1968)The Green Ghost (1968)Racing Mechanic (1971)Team Racer (1972) Written as W. E. Butterworth, William E. Butterworth, or William E. Butterworth, IIIComfort Me With Love (1959)Hot Seat (1959)The Love-Go-Round (1960)Where We Go From Here (1961)The Court-Martial (1962)The Wonders of Astronomy (1964)The Wonders of Rockets and Missiles (1965)Fast Green Car (or Flat Out) (1965)Stock-car Racer (1966)Air Evac (1967)Soldiers on Horseback; The Story of the United States Cavalry (1966)The Image Makers (1967)Helicopter Pilot (1967)Road Racer (1967)Orders to Vietnam (1968)Redline 7100 (1968)Grand Prix Driver (1969)Stop and Search (1969)The Wheel of a Fast Car (1969)Up to the Quarterback (1969)Fast and Smart (1970)Marty and the Micromidgets (1970) (later as Micro-Midget Racer (1973))Susan and Her Classic Convertible (1970)Steve Bellamy (1970)Stars and Planets (1970)Moving West on 122 (1971)Crazy to Race (1971)My Father's Quite a Guy (1971)Flying Army; The Modern Air Arm of the U.S. Army (1971)Return to Racing (1971)Wheels and Pistons; The Story of the Automobile (1971)The High Wind: the Story of NASCAR Racing (1971)The Sex Traveler (1971)Dateline: Talladega (1972)The Narc (1972)Skyjacked (1972)The Race Driver (1972)Flying Army: The Modern Air Arm of the U.S. Army (1973)Hot Wire (1973)Race Car Team (1973)Yankee Driver (1973)Dave White and the Electric Wonder Car (1974)Stop, Thief! (1974)Tires and Other Things: Some Heroes of Automotive Evolution (1975)Careers in the Armed Services (1976)Mighty Minicycles' (1976) The Roper Brothers and Their Magnificent Steam Automobile (1976) An Album of Automobile Racing (1977) Black Gold : The Story of Oil (1977) Hifi — From Edison's Phonograph to Quadraphonic Sound (1977) The Air Freight Mystery (1978) Next Stop, Earth (1978) The Tank Driver (1978)