Writing
Adventures of Captain Marvel
1941 · Screenplay
Flash Gordon's Trip to Mars
1938 · Screenplay
Buck Rogers
1939 · Writer
Planet Outlaws
1953 · Writer
Unmasked
1950 · Screenplay
The Whispering Shadow
1933 · Screenplay
The Three Musketeers
1933 · Story
The Young Land
1959 · Screenplay
Montana Belle
1952 · Screenplay
Spy Smasher
1942 · Screenplay
The Missouri Traveler
1958 · Screenplay
Drums of Fu Manchu
1940 · Screenplay
1977 · Screenplay
Flash Gordon: The Deadly Ray From Mars
1966 · Writer
Winning of the West
1953 · Story
Pack Train
1953 · Screenplay
Night Stage to Galveston
1952 · Writer
Apache Country
Whirlwind
1951 · Writer
Texans Never Cry
Gene Autry and the Mounties
Beyond the Purple Hills
1950 · Writer
Indian Territory
Squadron of Doom
1949 · Screenplay
Brimstone
1949 · Story
Rose of the Yukon
San Antone Ambush
1949 · Writer
Law of the Golden West
South of Rio
Daredevils of the Clouds
1948 · Screenplay
Blazing Across the Pecos
