Main contributor
- Chesson, Alex1
- Citizens for Clean Air1
- Clio Awards Collection1
- Dairy Queen3
- Dan E. Clark1
- Dapena, Jesus7
- David N. Baker1
- Denis Gillson2
- Doris Ann1
- E. S. Keller1
- Edward Feil3
- Edward Stanley1
- Eldon Rathburn2
- Emerson Film Corporation2
- Encyclopaedia Britanica Films Inc.1
- Encyclopaedia Britannica Films1
- Encyclopaedia Britannica Films Inc.2
- Eugene Kash2
- F. W. Keller1
- Feil, Ed2