Author
United States. Army. Corps of Engineers
15
United States. War Department
14
United States. Army. Corps of Topographical Engineers
13
United States. Department of State
11
United States. Department of the Treasury
6
Frémont, John Charles, 1813-1890
5
Derby, George Horatio, 1823-1861
4
Onís, Luis de, 1762-1827
4
Powell, John Wesley, 1834-1902
4
Schoolcraft, Henry Rowe, 1793-1864
4
Taylor, James W. 1819-1893
4
United States
4
United States. Post Office Department
4
United States. President (1801-1809 : Jefferson)
4
Warren, G. K. 1830-1882
4
Abercrombie, W. R. 1857-1943
3
Emory, William H. 1811-1887
3
Gilpin, William, 1813-1894
3
Jollivet, Ad. 1799-1848
3
Marcy, Randolph B. 1812-1887
3
Pike, Zebulon Montgomery, 1779-1813
3
Schwatka, Frederick, 1849-1892
3
Simpson, J. H. 1813-1883
3
Talbot, Theodore, 1825-1862
3
Union Pacific Railroad Company
3
United States. Army. Department of the Columbia
3
United States. Department of the Interior
3
Wied, Maximilian, Prinz von, 1782-1867
3
Abert, J. W. 1820-1897
2
Allen, Henry T. 1859-1930
2
Barbé-Marbois, François, marquis de, 1745-1837
2
Douay, Anastase
2
Duane, William, 1760-1835
2
Duden, Gottfried
2
Ellicott, Andrew, 1754-1820
2
Glenn, Edwin F. 1857-1926
2
Grinnell, Josiah Bushnell, 1821-1891
2
Gómez Palacio, Francisco, 1824-1886
2
Interstate Convention of Cattlemen
2
Le Clercq, Chrestien, approximately 1630-approximately 1695
2
Lewis, Meriwether, 1774-1809
2
Long, Stephen H. 1784-1864
2
Lundy, Benjamin, 1789-1839
2
Malézieux, Emile, 1822-1885
2
Massey, S. L.
2
Melish, John, 1771-1822
2
Membré, Zénobius, 1645?-1687?
2
Mexico. Secretaría de Relaciones Exteriores
2
Michaux, André, 1746-1802
2
Morris, Thomas, 1776-1844
2
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