People

Meriwether Lewis was selected by Thomas Jefferson to lead the Expedition. Learn more about his life and his impact on American history

William Clark was selected by Meriwether Lewis to help lead the journey West. Learn more about his life and role during the Expedition

Sacagawea was just 16 or 17-years-old when she became only woman to join the Corps. Learn more about her life and contributions

York was an enslaved man owned by Clark, and was the only African-American in the Corps. Learn about his contributions to the Expedition

Last updated: November 6, 2017