1902
U. S. Geological Survey
1:63k
1956
Shell Oil Company
1:143k
1926
Byllesby Engineering and Management Corporation
1:8m
1835
Featherstonhaugh, G.W.
1:507k
1:950k
1924
Rand McNally and Company
1:928k
1857
Gaston, Samuel N.
1:2m
1878
Cram, George Franklin
1:1m
1877
1852
Grassl, J. (Joseph)
