Main contributor
- United States. Army Pictorial Service3
- United States. Department of Agriculture. Forest Service3
- United States. War Department3
- Army Pictorial Serivce Signal Corps 2
- Army Pictorial Service : produced by2
- Beryl Denman Lacey2
- Bruce Cornwell2
- Combat film units of Signal Corps, Marines, Army Airforces, United States Navy2
- Coronet Instructional Films2
- Crown Film Unit2
- Delta Films2
- Division of Visual Aids, U.S. Office of Education (Producer)2
- E. H. C. Hildebrandt2
- ERPI Classroom Films, Inc.2
- Emerson Yorke Studio (Producer)2
- Encyclopaedia Britannica Films Inc.2
- Evelyn P. Anderson2
- Frank Wells2
- Indiana University Audio-Visual Center2
- Katharine Cornwell2