1943
United States. Office of War Information
1:1m
1846
Preuss, Charles
1:634k
1861
Beckwith, E.G.
1:760k
1882
Bancroft, Hubert Howe.
1858
Campbell, Albert
1:6m
1857
Campbell, Albert
1:760k
1893
Union Pacific Railway Company.
1900
Von Haake, A.
1:634k
1901
Murray-Aaron, Eugene, 1852-1941.
1:1m
1889
Rand McNally and Company
1:1m