| 1949 | Squadron of Doom - Screenplay |
| 1942 | Pardon My Gun - Writer |
| 1941 | Holt of the Secret Service - Screenplay |
| 1941 | The Medico of Painted Springs - Writer |
| 1940 | Deadwood Dick - Screenplay |
| 1939 | Scouts to the Rescue - Screenplay |
| 1938 | Mars Attacks the World - Screenplay |
| 1938 | Flaming Frontiers - Screenplay |
| 1938 | Flash Gordon's Trip to Mars - Screenplay |
| 1938 | Flash Gordon: The Deadly Ray From Mars - Writer |
| 1938 | Rocket Ship - Original Story |
| 1938 | Rocket Ship - Screenplay |
| 1938 | Forbidden Valley - Director |
| 1938 | Forbidden Valley - Screenplay |
| 1937 | Tim Tyler's Luck - Director |
| 1937 | Tim Tyler's Luck - Screenplay |
| 1937 | Tim Tyler's Luck - Story |
| 1937 | Wild West Days - Screenplay |
| 1937 | Secret Agent X-9 - Screenplay |
| 1936 | Ghost Patrol - Screenplay |
| 1934 | The Lost Jungle - Writer |
| 1934 | The Lost Jungle - Screenplay |
| 1934 | The Lost Jungle - Supervising Editor |
| 1933 | The Mystery Squadron - Screenplay |
| 1933 | The Wolf Dog - Screenplay |
| 1933 | Fighting With Kit Carson - Screenplay |
| 1933 | The Whispering Shadow - Screenplay |
| 1933 | The Three Musketeers - Story |
| 1932 | The Devil Horse - Writer |
| 1932 | The Hurricane Express - Story |
| 1932 | The Last of the Mohicans - Screenplay |
| 1932 | The Shadow of the Eagle - Editor |
| 1932 | The Shadow of the Eagle - Writer |
| 1931 | The Lightning Warrior - Screenplay |
| 1931 | The Galloping Ghost - Screenplay |
| 1931 | The Vanishing Legion - Editor |
| 1931 | The Vanishing Legion - Screenplay |
| 1931 | King of the Wild - Scenario Writer |
| 1930 | The Phantom of the West - Screenplay |
| 1930 | The Phantom of the West - Story |
| 1930 | The Lone Defender - Editor |
| 1929 | The King of the Kongo - Screenplay |
| 1929 | The Fatal Warning - Story |
| 1928 | Tropic Madness - Writer |
| 1928 | The Vanishing West - Writer |
| 1928 | Vultures of the Sea - Writer |
| 1927 | Land of the Lawless - Writer |
| 1927 | Stranded - Title Designer |
| 1926 | The Lodge in the Wilderness - Writer |
| 1925 | The Everlasting Whisper - Scenario Writer |
| 1925 | Greater Than a Crown - Writer |
| 1924 | The Sunset Trail - Writer |
| 1924 | Daring Chances - Writer |
| 1924 | The Measure of a Man - Screenplay |
| 1924 | Alimony - Adaptation |
| 1924 | Alimony - Screenplay |
| 1923 | Daytime Wives - Writer |
| 1923 | Desert Driven - Adaptation |
| 1923 | While Paris Sleeps - Writer |
| 1922 | Lorna Doone - Scenario Writer |
| 1921 | The Foolish Matrons - Writer |
Duvar