1878
Snyder, Van Vechten & Co.
1:190k
1897
League of American Wheelmen, Wisconsin Division
1:253k
1940
U.S. Dept. of Agriculture Bureau of Soils
1:191k
1902
U. S. Geological Survey
1:125k
1897
League of American Wheelmen, Wisconsin Division
1:253k
1846
Lapham, I.A.
1:634k
1932
Wright, John K.
1853
Chapman, Silas
1:634k
1878
Snyder, Van Vechten & Co.
1:210k
1855
Chapman, Silas
1:634k