 Peril from the Planet Mongo1966 · Writer | Writer |
| SSakima and the Masked Marvel1966 · Screenplay | Screenplay |
 Purple Death from Outer Space1966 · Writer | Writer |
 Spaceship to the Unknown1966 · Writer | Writer |
 Blazing the Overland Trail1956 · Screenplay | Screenplay |
 Perils of the Wilderness1956 · Screenplay | Screenplay |
 Jungle Safari1956 · Screenplay | Screenplay |
 Devil Goddess1955 · Writer | Writer |
 Adventures of Captain Africa1955 · Screenplay | Screenplay |
 Riding with Buffalo Bill1954 · Screenplay | Screenplay |
 Gunfighters of the Northwest1954 · Screenplay | Screenplay |
 The Great Adventures of Captain Kidd1953 · Screenplay | Screenplay |
 The Lost Planet1953 · Screenplay | Screenplay |
 Son of Geronimo1952 · Screenplay | Screenplay |
 Blackhawk1952 · Writer | Writer |
 King of the Congo1952 · Screenplay | Screenplay |
 Mysterious Island1951 · Screenplay | Screenplay |
 Roar of the Iron Horse1951 · Screenplay | Screenplay |
 Pirates of the High Seas1950 · Writer | Writer |
 Atom Man vs. Superman1950 · Screenplay | Screenplay |
 The Adventures of Sir Galahad1949 · Screenplay | Screenplay |
 The Phantom Creeps1949 · Screenplay | Screenplay |
 Batman and Robin1949 · Screenplay | Screenplay |
 Bruce Gentry1949 · Screenplay | Screenplay |
 Congo Bill1948 · Screenplay | Screenplay |
 Superman1948 · Screenplay | Screenplay |
 The Sea Hound1947 · Screenplay | Screenplay |
 Last of the Redmen1947 · Screenplay | Screenplay |
 The Vigilante: Fighting Hero of the West1947 · Screenplay | Screenplay |
 Betty Co-Ed1946 · Screenplay | Screenplay |
 Son of the Guardsman1946 · Screenplay | Screenplay |
 Chick Carter, Detective1946 · Screenplay | Screenplay |
 Hop Harrigan: America's Ace of the Airways1946 · Screenplay | Screenplay |
 Jungle Raiders1945 · Screenplay | Screenplay |
 Gangster's Den1945 · Screenplay | Screenplay |
 Trouble Chasers1945 · Screenplay | Screenplay |
 The Master Key1945 · Screenplay | Screenplay |
 Brenda Starr, Reporter1945 · Writer | Writer |
 Jungle Queen1945 · Writer | Writer |
 The Great Alaskan Mystery1944 · Screenplay | Screenplay |
 The Masked Marvel1943 · Screenplay | Screenplay |
 Adventures of the Flying Cadets1943 · Screenplay | Screenplay |
 Don Winslow of the Coast Guard1943 · Screenplay | Screenplay |
 Junior G-Men of the Air1942 · Screenplay | Screenplay |
 Gang Busters1942 · Screenplay | Screenplay |
 Holt of the Secret Service1941 · Screenplay | Screenplay |
 The Iron Claw1941 · Screenplay | Screenplay |
 Riders of Death Valley1941 · Screenplay | Screenplay |
 The Spider Returns1941 · Writer | Writer |
 Billy The Kid's Fighting Pals1941 · Screenplay | Screenplay |
 Outlaws of the Rio Grande1941 · Screenplay | Screenplay |
 The Green Hornet Strikes Again!1940 · Screenplay | Screenplay |
 Pride of the Bowery1940 · Screenplay | Screenplay |
 Junior G-Men1940 · Writer | Writer |
 Dead End Kids vs. Spies, Inc.1940 · Writer | Writer |
 Deadwood Dick1940 · Screenplay | Screenplay |
 Winners of the West1940 · Screenplay | Screenplay |
 Flash Gordon Conquers the Universe1940 · Screenplay | Screenplay |
 The Green Hornet1940 · Screenplay | Screenplay |
 The Oregon Trail1939 · Screenplay | Screenplay |
 Texas Wildcats1939 · Screenplay | Screenplay |
 Smoky Trails1939 · Screenplay | Screenplay |
 Scouts to the Rescue1939 · Screenplay | Screenplay |
 Trigger Pals1939 · Writer | Writer |
 The Phantom Creeps1939 · Screenplay | Screenplay |
 The Spider's Web1938 · Screenplay | Screenplay |
 Durango Valley Raiders1938 · Screenplay | Screenplay |
 Paroled from the Big House1938 · Writer | Writer |
 Flaming Frontiers1938 · Screenplay | Screenplay |
 Songs and Bullets1938 · Screenplay | Screenplay |
 Whirlwind Horseman1938 · Screenplay | Screenplay |
 The Feud Maker1938 · Screenplay | Screenplay |
 Thunder in the Desert1938 · Screenplay | Screenplay |
 Rocket Ship1938 · Screenplay | Screenplay |
 The Rangers' Round-Up1938 · Writer | Writer |
 Paroled - To Die1938 · Screenplay | Screenplay |
 Arizona Gunfighter1937 · Screenplay | Screenplay |
 Boothill Brigade1937 · Writer | Writer |
 Doomed at Sundown1937 · Screenplay | Screenplay |
 A Lawman Is Born1937 · Writer | Writer |
 Gun Lords of Stirrup Basin1937 · Screenplay | Screenplay |
 The Trusted Outlaw1937 · Screenplay | Screenplay |
 The Idaho Kid1936 · Screenplay | Screenplay |
 The Crooked Trail1936 · Screenplay | Screenplay |
 The Phantom Rider1936 · Screenplay | Screenplay |
 Flash Gordon1936 · Screenplay | Screenplay |
 Stormy1935 · Writer | Writer |
 The Roaring West1935 · Writer | Writer |
 Rustlers of Red Dog1935 · Screenplay | Screenplay |
 The Red Rider1934 · Screenplay | Screenplay |
 Pirate Treasure1934 · Screenplay | Screenplay |
 Perils of Pauline1933 · Screenplay | Screenplay |
 Tarzan the Fearless1933 · Writer | Writer |
 The Phantom of the Air1933 · Screenplay | Screenplay |
 The Devil Horse1932 · Writer | Writer |
 Jungle Mystery1932 · Screenplay | Screenplay |
 The Last Frontier1932 · Screenplay | Screenplay |
 The One Way Trail1931 · Screenplay | Screenplay |
| HHeroes of the Flames1931 · Screenplay | Screenplay |
 The Harvest of Hate1929 · Writer | Writer |
 Hoofbeats of Vengeance1929 · Screenplay | Screenplay |
 Burning the Wind1929 · Writer | Writer |
 The Vanishing Rider1928 · Writer | Writer |
| OOne Glorious Scrap1927 · Writer | Writer |
| TThe Courage of Collins1927 · Writer | Writer |
| HHands Off1927 · Writer | Writer |
 Hard Fists1927 · Writer | Writer |
 Blazing Days1927 · Writer | Writer |
 The Stolen Ranch1926 · Writer | Writer |
 Martin of the Mounted1926 · Writer | Writer |
 The Texas Bearcat1925 · Writer | Writer |
 The Satin Girl1923 · Writer | Writer |
 Thru the Flames1923 · Writer | Writer |
 Perils of the Yukon1922 · Writer | Writer |
 With Stanley in Africa1922 · Screenplay | Screenplay |
 The Deputy's Double Cross1922 · Writer | Writer |
 Man Trackers1921 · Writer | Writer |
 That Girl Montana1921 · Writer | Writer |
 Help Wanted - Male1920 · Writer | Writer |
 Miss Ambition1918 · Writer | Writer |
 The Wooing of Princess Pat1918 · Writer | Writer |
 The Menace1918 · Writer | Writer |
| TThe Nuremberg Watch1916 · Writer | Writer |
 The Shop Girl1916 · Writer | Writer |
