what was the lewis and clark expedition undertaken to explore
A Shoshone woman who joined the Lewis and Clark expedition as a guide and interpreter Meriwether Lewis (1774-1809) Army captain appointed by President Jefferson to explore the Louisiana Territory and lands west to the Pacific Ocean William Clark (1770-1838) American soldier and friend of Meriwether Lewis, he was invited to explore the Louisiana Purchase and joined what became known as the Lewis and Clark expedition. Aaron Burr 3rd Vice President of the United States who served under President Thomas Jefferson; tied Jefferson for electoral votes in the election of 1800