1950
United States. Air Force
1:500k
1895
United States. War Department
1:380k
1863
U.S. Coast Survey
1:650k
1850
Mitchell, Samuel Augustus
1:2m
1819
Baker, Harriet E.
1866
U.S. General Land Office
1:1m
1848
Greenleaf, Jeremiah
1:2m
1845
Tanner, Henry S.
1:2m
1838
Bradford, Thomas G.
1:2m
1831
Finley, Anthony
1:2m