- Hobbs, Howard C.42
- Minnesota Geological Survey41
- Alden Publishing Co.40
- Ringborg, Axel39
- Boerboom, Terrence J.38
- Morey, G.B.38
- Setterholm, Dale R.37
- Jirsa, Mark A.35
- McGill-Warner Co.35
- Grout, Frank F. (Frank Fitch), 1880-195832
- Lively, R. S.30
- American Geographical Society of New York29
- Olsen, Bruce M.28
- Canada. Department of the Interior27
- Lusardi, Barbara A.27
- Minneapolis (Minn.). City Engineers Office27
- Falteisek, Jan25
- Saint Paul (Minn.). Department of Public Works24
- United States. Forest Service24
- Morden, Robert, approximately 1650-170323