As David Wolff

1935
Harbor Scenes (Ralph Steiner Productions). Narration.

1936
The World Today (Nykino). Commentary.

1937
Heart of Spain (Frontier Films). Co-narration.
China Strikes Back (Frontier Films). Co-narration.

1937
People of the Cumberland (Frontier Films). Co-commentary.

1938
Return to Life (Frontier Films). Narration

1939
The History and Romance of Transportation (Frontier Films). Co-commentary.

1940
United Action (Frontier Films). Co-commentary.
White Flood (Frontier Films). Co-commentary.
Tall Tales (Brandon Films). Commentary.
Valley Town (University and Documentary Film Distributions). Co-commentary.

1941
A Place to Live (Documentary Film Productions). Commentary.
Here Is Tomorrow (Documentary Film Productions). Commentary.

1942
Native Land (Leo Hurwitz, Paul Strand, Al Saxon, William Watts). Co-script.