1985
1:100k
1991
1:100k
1952
United States. Air Force
1:500k
1895
United States. War Department
1:634k
1895
United States. War Department
1:634k
1903
Rand McNally and Company
1:824k
1889
Cram, George
1:1m
1938
Smith, Karl
1:1m
1924
Rand McNally and Company
1914
Kenyon Company
1:1m