Known For
Filmography
1973
1970
1970
1969
1968
1967
1966
1964
1964
1962
1961
1961
1961
1960
1960
1958
1958

The Valdez Horses
Movie · Screenplay

The Deserter
Movie · Screenplay, Adaptation

Flap
Movie · Novel, Screenplay

100 Rifles
Movie · Screenplay

Hellfighters
Movie · Screenplay

The War Wagon
Movie · Screenplay, Novel

Tarzan and the Valley of Gold
Movie · Screenplay

Rio Conchos
Movie · Screenplay, Novel

12 O'Clock High
TV · Writer · 1 ep

The Virginian
TV · Writer · 2 eps

The Comancheros
Movie · Screenplay

Posse from Hell
Movie · Screenplay, Novel

The Second Time Around
Movie · Screenplay

Flaming Star
Movie · Screenplay, Novel

Seven Ways from Sundown
Movie · Screenplay, Novel

The Rifleman
TV · Writer · 1 ep

Lawman
TV · Writer · 16 eps