1966
Sakima and the Maske...
Screenplay
1966
D-Day on Mars
Screenplay
1966
Purple Death from Ou...
Writer
1966
Spaceship to the Unk...
Writer
1956
Savage Fury
Writer
1949
Lawless Code
Screenplay
1949
Brand of Fear
Screenplay
1949
The Phantom Creeps
Screenplay
1949
Gun Law Justice
Screenplay
1949
Federal Agents vs. U...
Screenplay
1948
Adventures of Frank...
Screenplay
1948
The Rangers Ride
Screenplay
1948
G-Men Never Forget
Screenplay
1948
Dangers of the Canad...
Screenplay
1947
Jesse James Rides Ag...
Screenplay
1947
Son of Zorro
Screenplay
1946
The Crimson Ghost
Screenplay
1946
Daughter of Don Q
Screenplay
1946
King of the Forest R...
Screenplay
1946
The Phantom Rider
Screenplay
1945
The Purple Monster S...
Screenplay
1945
Federal Operator 99
Screenplay
1945
Manhunt of Mystery I...
Screenplay
1944
Zorro's Black Whip
Screenplay
1944
Haunted Harbor
Screenplay
1944
Captain America
Screenplay
1943
The Masked Marvel
Screenplay
1943
Secret Service In Da...
Writer
1943
Daredevils of the We...
Screenplay
1942
The Secret Code
Screenplay
1942
Perils of the Royal...
Screenplay
1941
Holt of the Secret S...
Screenplay
1941
The Iron Claw
Screenplay
1941
Riders of Death Vall...
Screenplay
1940
The Green Hornet Str...
Screenplay
1940
Junior G-Men
Writer
1940
Dead End Kids vs. Sp...
Writer
1940
Winners of the West
Screenplay
1940
Flash Gordon Conquer...
Screenplay
1940
The Green Hornet
Screenplay
1940
Mandrake the Magicia...
Screenplay
1939
Trigger Fingers
Screenplay
1939
Trigger Fingers
Story
1939
Straight Shooter
Story
1939
Straight Shooter
Screenplay
1939
The Oregon Trail
Screenplay
1939
Mandrake the Magicia...
Screenplay
1939
Outlaws' Paradise
Screenplay
1939
Flying G-Men
Screenplay
1939
Scouts to the Rescue
Screenplay
1939
The Phantom Creeps
Screenplay
1938
The Spider's Web
Screenplay
1938
Flaming Frontiers
Screenplay
1938
Rocket Ship
Screenplay
1937
Amateur Crook
Screenplay
1937
Amateur Crook
Story
1937
Sky Racket
Screenplay
1937
Sky Racket
Story
1937
Million Dollar Racke...
Story
1937
Million Dollar Racke...
Screenplay
1937
Lost Ranch
Story
1937
Lost Ranch
Screenplay
1937
Flying Fists
Screenplay
1937
Orphan of the Pecos
Writer
1937
Mystery Range
Screenplay
1937
Mystery Range
Story
1937
The Feud of the Trai...
Screenplay
1937
The Feud of the Trai...
Story
1937
Cheyenne Rides Again
Story
1937
Cheyenne Rides Again
Screenplay
1937
Blake of Scotland Ya...
Screenplay
1937
Blake of Scotland Ya...
Screenplay
1936
The Phantom of the R...
Screenplay
1936
The Phantom of the R...
Story
1936
Law and Lead
Screenplay
1936
The Phantom Rider
Screenplay
1936
Flash Gordon
Screenplay
1935
The Roaring West
Writer
1935
The New Adventures o...
Screenplay
1935
The Call of the Sava...
Writer
1935
Rustlers of Red Dog
Screenplay
1934
When a Man Sees Red
Story
1934
The Red Rider
Screenplay
1934
The Vanishing Shadow
Screenplay
1934
Pirate Treasure
Screenplay
1933
Perils of Pauline
Screenplay
1933
Tarzan the Fearless
Writer
1933
The Phantom of the A...
Screenplay
1932
The Secrets of Wu Si...
Writer
1932
Jungle Mystery
Screenplay
1932
The Airmail Mystery
Story
1929
Plunging Hoofs
Story
1928
Guardians of the Wil...
Writer
1928
Thunder Riders
Story
1928
Thunder Riders
Screenplay
1928
The Call of the Hear...
Scenario Writer
1928
The Call of the Hear...
Story
1928
The Fearless Rider
Writer
1927
Wolf's Trail
Screenplay
1927
Wolf's Trail
Story
1927
The Border Cavalier
Screenplay
1927
The Border Cavalier
Story
1926
The Frontier Trail
Screenplay
1926
The Frontier Trail
Story
1926
Driftin' Thru
Story
1923
In Search of a Thril...
Screenplay
1922
Welcome to Our City
Writer
1921
The Right Way
Writer
1917
The Secret Kingdom
Scenario Writer
1916
Beatrice Fairfax
Screenplay
1915
The Romance of Elain...
Writer
1915
The New Exploits of...
Writer
1914
The Exploits of Elai...
Screenplay
1914
The Perils of Paulin...
Writer