| A | B |
|---|
| Meriweather Lewis | Leader of expedition |
| William Clark | Chosen by Lewis as second in command |
| York | Clark's slave and companion |
| Seaman | Lewis' 150 lb.Newfoundland dog |
| Sacajawea | Shoshone woman who acted as guide |
| Toussaint Charbonneau | Sacajawea's husband and fellow guide |
| Thomas Jefferson | President of US at time of Expedition |
| Albert Gallatin | Secretery of Treasurey for Jefferson |
| Ft. Clatsop | site built by Corps of Discovery when they reached Pacific Ocean |
| Missouri River | River followed by Corps of Discovery from Mississippi River to the Rocky Mountians |
| Columbia River | RIver followed by Corps to the Pacific |
| Robert Livingston | U.S.Ambassador to France during Jefferson Presidency |
| Charles Talleyrand | represented Napoleon at Louisiana Purchase negotiations |
| Fifteen Million Dollars | price the U.S.paid for Louisiana Territory |
| Zebulon Pike | explored southwestern area of Louisiana Purchase |
