- United States. Soil Conservation Service (557)
- Geological Survey of Minnesota (544)
- Photographic Laboratory (543)
- University of Minnesota. Audio Visual Library Services (543)
- Groehler, Brett (508)
- Wigington, Clarence Wesley, 1883-1967 (442)
- Audubon, John James, 1785-1851 (438)
- Hibbard, C.J., 1845-1924 (414)
- University of Minnesota Photographic Laboratory (388)
- Howe, John H., 1913-1997 (381)
- Elie Charlier [?] (377)
- Mercator, Gerhard, 1512-1594 (356)
- Purcell, William Gray, 1880-1965 (344)
- University of Minnesota. University Media Resources (321)
- Penumbra Theatre Company (304)
- Johnson, Timothy J. (300)
- University of Minnesota (300)
- Lundie, Edwin H. (299)
- Minnesota Public Health Association (295)
- Chicago Architectural Photographing Company (Photographer) (294)
