Directing

1931

… Director

1920

… Director

1918

… Director

1917

… Director

1916

… Director

1915		Morpheus Mike … Director
1915		The Dinosaur and the Missing Link: A Prehistoric Tragedy … Director

Visual Effects

1960

… Visual Effects

1959

… Visual Effects

1957

… Visual Effects … Special Effects Supervisor

1956

… Visual Effects

1949

… Visual Effects

1935

… Visual Effects

1933		The Son of Kong … Visual Effects
1933		King Kong … Visual Effects

1925

… Visual Effects

Crew

1959

… Special Effects

1956

… Special Effects

1925

… Special Effects

1918

… Special Effects … Cinematography

1916

… Special Effects

Writing

1963

… Original Concept

1962

… Original Story

1956

… Original Story … Idea

1918

… Writer

Acting

1918

as Ghost of 'Mad Dick', the Hermit (uncredited)