Title Page | Collection Summary | Biographical/Organizational Note | Scope and Content | Arrangement
Biographical Note
| Date | Event |
|---|---|
| 1786, July 24 | Born, Cluses, Savoy, France |
| 1817 | Astronomer, Royal Observatory, Paris, France |
| 1832 | Emigrated to United States |
| 1835 | Expedition on Missouri River |
| 1836 | Expedition to Mississippi River headwaters |
| 1837 | Expedition to Lake Superior via St. Croix River and return via St. Louis River and Savannah portage |
| 1838 | Expedition to the headwaters of St. Pierre River (Minnesota River) and Des Moines River |
| 1839 | Expedition from Ft. Pierre, S. Dak., to Devil’s Lake, N. Dak., via the Missouri River Published Meteorological Observations. U. S. War Department |
| 1843, Sept. 11 | Died, Washington, D.C. Posthumous publication of Map of the Hydrographical Basin of the Upper Mississippi River. Twenty-sixth Congress, Second Session, U. S. Senate Document 237 |