Author
Mitchell, S. Augustus 1792-1868
19
John Boyd Thacher Collection (Library of Congress)
12
Morse, Jedidiah, 1761-1826
11
Workman, Benjamin
10
Melish, John, 1771-1822
7
Jay I. Kislak Collection (Library of Congress)
6
Library of Congress. Geography and Map Division
6
Columbus, Christopher
5
Jesuits
5
Long, John Hamilton
5
Mitchell, S. Augustus
5
Brookes, R. active 1721-1763
4
Disturnell
4
Gass, Patrick, 1771-1870
4
Moll, Herman, -1732
4
National Geographic Society (U.S.)
4
Núñez Cabeza de Vaca, Alvar, active 16th century
4
Rogers, Robert, 1731-1795
4
Salmon, Thomas, 1679-1767
4
Tanner
4
Thomas, Joseph, 1811-1891
4
American Imprint Collection (Library of Congress)
3
Anderson, Rasmus B. 1846-1936
3
Baldwin, Thomas
3
Brookes, Richard, fl. 1750
3
Davis, William Morris, 1850-1934
3
Frémont, John Charles, 1813-1890
3
Goldsmith, Oliver, 1730?-1774
3
Guthrie, William, 1708-1770
3
Heylyn, Peter, 1600-1662
3
Humboldt, Alexander von, 1769-1859
3
Lord, Clifford Lee, 1912-
3
Lord, Elizabeth H. 1912-1979
3
Möllhausen, Balduin, 1825-1905
3
Phelps, Humphrey, active 19th century
3
Phillips, Philip Lee, 1857-1924
3
Praslow, J.
3
Rafn, Carl Christian, 1795-1864
3
Shepherd, William R. 1871-1934
3
Thordarson Collection
3
United States. Army. Corps of Topographical Engineers
3
United States. Bureau of the Census
3
Vespucci, Amerigo, 1451-1512
3
Wacker, Peter O.
3
Winsor, Justin, 1831-1897
3
A. H.
2
Adams, Daniel, 1773-1864
2
American Geographical Society of New York
2
Baird, Spencer Fullerton, 1823-1887
2
Barbeau, Raymond
2
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