Main contributor
- British Ministry of Information2
- unknown2
- Caldwell, Erskine, 1903-19871
- Castle Films, inc.1
- Castle, Eugene W.1
- Central News Reel Studios, Moscow1
- Constable, J. M.1
- Crawley Films Limited1
- Dick, Sheldon1
- ERPI Classroom Films, Inc.1
- Encyclopaedia Britannica1
- Indiana U Instructional Support Services1
- Keech, Kelvin, 1895-19771
- Knox, Gordon, 1906-19921
- Margaret T. Cussler1
- Mary L. DeGive1
- National Film Board of Canada1
- National Film Board of Canada 1
- New York Zoological Society1
- Rotha, Paul, 1907-1984.1