- Cappelen, Frederick Wilhelm, 1857-1921 (10)
- Mitchell, Samuel Augustus, 1792-1868 (7)
- McGill-Warner Co (5)
- University of Minnesota. Agricultural Experiment Station (4)
- Walker, John, 1786-1873, (cartographer) (4)
- A. Hoen & Co. (3)
- Chief Geologist. (3)
- Colton, Joseph Hutchins, 1800-1893 (3)
- D. Appleton and Company. (3)
- Faden, William, 1749-1836 (3)
- Geological Survey (U.S.) (3)
- J. & C. Walker (Firm), (engraver) (3)
- Jaillot, Alexis Hubert, 1632?-1712 (3)
- Julius Bien & Co. (3)
- Kirk, Fred W. (3)
- Milwaukee Lith. & Engr. Co. (3)
- Sublette, G.W. (3)
- U.S. Coast and Geodetic Survey. (3)
- United States. Bureau of Soils (3)
- W.H. Allen & Co., (publisher) (3)