William Clark
William Clark, the younger brother of Louisville founder George Rogers Clark, served as co-leader of the Lewis & Clark Expedition. The Clark family settled in Jefferson County in 1785 when William was fourteen years old. For the next eighteen years the family farm, Mulberry Hill, was his home. During those years he grew to manhood on the frontier, learning many of the skills that would serve him so well for the expedition. From 1792 to 1796 he served as a lieutenant in the United States Army. On July 18, 1803, he accepted his friend Meriwether Lewis’s invitation to join him as co-leader of the western expedition.
