Meriwether Lewis, American captain, explorer, and politician, 2nd Governor of Louisiana Territory (born 1774)

Meriwether Lewis was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition, also known as the Corps of Discovery, with William Clark. Their mission was to explore the territory of the Louisiana Purchase, establish trade with, and sovereignty over the natives near the Missouri River, and claim the Pacific Northwest and Oregon Country for the United States before European nations. They also collected scientific data and information on indigenous nations. President Thomas Jefferson appointed him Governor of Upper Louisiana in 1806. He died in 1809 of gunshot wounds, in what was either a murder or suicide.

The governor of Missouri is the head of government of the U.S. state of Missouri and the commander-in-chief of the Missouri National Guard. The governor has a duty to enforce state laws and the power to either approve or veto bills passed by the Missouri Legislature, to convene the legislature and grant pardons, except in cases of impeachment.