Great Lives

Meriwether Lewis and William Clark

Lewis 1774–1809; Clark 1770–1838 · Leaders of the Corps of Discovery, which crossed the American West to the Pacific and back.

Meriwether Lewis was a Virginia-born army officer who served as President Thomas Jefferson's private secretary. After the Louisiana Purchase of 1803, Jefferson asked him to lead an expedition up the Missouri River to find a route to the Pacific, map the land, study its plants and animals, and meet its native nations. Lewis chose as co-leader his friend William Clark, an experienced officer and mapmaker. Their Corps of Discovery of about thirty-three people, including York, an enslaved man owned by Clark, left the St. Louis area in May 1804. They wintered among the Mandan in present-day North Dakota, where they were joined by the Shoshone woman Sacagawea and her husband. They crossed the Rocky Mountains with Shoshone horses, nearly starved in the Bitterroot Mountains, and reached the Pacific Ocean in November 1805. They returned to St. Louis in September 1806, having lost only one man, to illness. Lewis became governor of the Louisiana Territory and died of gunshot wounds in 1809, probably by his own hand. Clark became an Indian agent and governor of Missouri Territory and died in 1838.

Faith: Faith not well documented. Source: Wikipedia

Meriwether Lewis and William Clark by Charles Willson Peale
Meriwether Lewis and William Clark by Charles Willson Peale Source · Public domain

Key dates

  • 1803 Louisiana Purchase; Lewis chosen to lead
  • 1804 Expedition leaves the St. Louis area
  • 1805 Reaches the Pacific Ocean
  • 1806 Returns to St. Louis
  • 1809 Lewis dies
  • 1838 Clark dies

Fun facts

Watch

  • Biography Lewis & Clark: Explorers of the New Frontier | Full Documentary | Biography. Biography. Watch on YouTube

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Read about them

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Grades 9–12

  • Undaunted Courage by Stephen E. Ambrose (Simon & Schuster, 1997; ISBN 9780684826974)
    Bookshop.org · Amazon

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David Livingstone · Sacagawea