 Buck Rogers1977 · Screenplay | Screenplay |
 Flash Gordon: The Deadly Ray From Mars1966 · Writer | Writer |
 The Young Land1959 · Screenplay | Screenplay |
 The Missouri Traveler1958 · Screenplay | Screenplay |
 Pack Train1953 · Screenplay | Screenplay |
 Winning of the West1953 · Screenplay | Screenplay |
 Planet Outlaws1953 · Writer | Writer |
 Montana Belle1952 · Screenplay | Screenplay |
 Apache Country1952 · Writer | Writer |
 Night Stage to Galveston1952 · Writer | Writer |
 Whirlwind1951 · Writer | Writer |
 Texans Never Cry1951 · Writer | Writer |
 Gene Autry and the Mounties1951 · Writer | Writer |
 Indian Territory1950 · Writer | Writer |
 Beyond the Purple Hills1950 · Writer | Writer |
 Unmasked1950 · Screenplay | Screenplay |
 Squadron of Doom1949 · Screenplay | Screenplay |
 San Antone Ambush1949 · Writer | Writer |
 South of Rio1949 · Writer | Writer |
 Law of the Golden West1949 · Writer | Writer |
 Rose of the Yukon1949 · Screenplay | Screenplay |
 Sundown in Santa Fe1948 · Writer | Writer |
 Daredevils of the Clouds1948 · Screenplay | Screenplay |
 Blazing Across the Pecos1948 · Screenplay | Screenplay |
 Whirlwind Raiders1948 · Screenplay | Screenplay |
 Slippy McGee1948 · Screenplay | Screenplay |
 Last Days of Boot Hill1947 · Screenplay | Screenplay |
 Buckaroo from Powder River1947 · Screenplay | Screenplay |
 Red River Renegades1946 · Screenplay | Screenplay |
 Corpus Christi Bandits1945 · Screenplay | Screenplay |
 The Topeka Terror1945 · Screenplay | Screenplay |
 Sheriff of Las Vegas1944 · Screenplay | Screenplay |
 Vigilantes of Dodge City1944 · Screenplay | Screenplay |
 Sheriff of Sundown1944 · Screenplay | Screenplay |
 Stagecoach to Monterey1944 · Writer | Writer |
 San Antonio Kid1944 · Screenplay | Screenplay |
 Outlaws of Santa Fe1944 · Screenplay | Screenplay |
 Mojave Firebrand1944 · Screenplay | Screenplay |
 California Joe1943 · Screenplay | Screenplay |
 Drums of Fu Manchu1943 · Screenplay | Screenplay |
 Death Valley Manhunt1943 · Screenplay | Screenplay |
 The Man from the Rio Grande1943 · Writer | Writer |
 Black Hills Express1943 · Screenplay | Screenplay |
 Bordertown Gun Fighters1943 · Screenplay | Screenplay |
 Fugitive from Sonora1943 · Screenplay | Screenplay |
 Days of Old Cheyenne1943 · Screenplay | Screenplay |
 Carson City Cyclone1943 · Screenplay | Screenplay |
 Dead Man's Gulch1943 · Screenplay | Screenplay |
 Thundering Trails1943 · Screenplay | Screenplay |
 The Sundown Kid1942 · Screenplay | Screenplay |
 Outlaws of Pine Ridge1942 · Writer | Writer |
 The Sombrero Kid1942 · Writer | Writer |
 Perils of Nyoka1942 · Screenplay | Screenplay |
 Spy Smasher1942 · Screenplay | Screenplay |
 King of the Texas Rangers1941 · Screenplay | Screenplay |
 Jungle Girl1941 · Screenplay | Screenplay |
 Adventures of Captain Marvel1941 · Screenplay | Screenplay |
 Mysterious Doctor Satan1940 · Screenplay | Screenplay |
 King of the Royal Mounted1940 · Screenplay | Screenplay |
 Adventures of Red Ryder1940 · Screenplay | Screenplay |
 Drums of Fu Manchu1940 · Screenplay | Screenplay |
 Wall Street Cowboy1939 · Screenplay | Screenplay |
 Boys' Reformatory1939 · Writer | Writer |
 Frontier Pony Express1939 · Screenplay | Screenplay |
 Buck Rogers1939 · Writer | Writer |
 Hawk of the Wilderness1938 · Screenplay | Screenplay |
 Mars Attacks the World1938 · Screenplay | Screenplay |
 Red Barry1938 · Screenplay | Screenplay |
 Flash Gordon's Trip to Mars1938 · Screenplay | Screenplay |
 Rocket Ship1938 · Screenplay | Screenplay |
 Tim Tyler's Luck1937 · Screenplay | Screenplay |
 Wild West Days1937 · Screenplay | Screenplay |
 Secret Agent X-91937 · Screenplay | Screenplay |
 Border Caballero1936 · Writer | Writer |
 The Whispering Shadow1933 · Screenplay | Screenplay |
