- Hoffman, J. H. (John H.)5
- Ikola, Rodney J.5
- Johnston, A. W. (A. Walfred)5
- Kirk, Fred W.5
- Krueger, Harold W.5
- McGinnis, Lyle D. (Lyle David), 1931-20175
- Nier, Alfred O. (Alfred Otto), 1911-19945
- United States. Bureau of Chemistry and Soils5
- Zhang, Hua (Geologist)5
- Chapman, Silas4
- Cooley, George Washington (1845-1920)4
- Cram, George Franklin, 1841-19284
- Jewett & Son4
- Minneapolis Directory Company4
- Peterson, Dean M.4
- Prokopovich, N. P. (Nikola P.)4
- Rice, G. Jay4
- Saint Paul (Minn.). City Engineer's Office4
- Setterholm, D.R4
- Setterholm, Dale, R4