Index Inside the Corps The Native Americans The Archive Living History Into the Unknown Forum with Ken Burns Classroom Resources Related Products Interactive Trail Map Search Lewis and Clark navigation Introduction The Corps To Equip an Expedition Circa 1803 Lewis and Clark navigation

Weiser was born in 1781 in Pennsylvania, where he apparently was reared. He was one of the army men recruited for the expedition from Captain Russell Bissell's command at Kaskaskia in November 1803. He was active in the fur trade after the mission, during which he allegedly ranged widely across the northwest, beyond the Continental Divide. Clark, on his 1810 manuscript map prepared to accompany the 1814 Biddle-Allen edition of the journals, shows a Weiser River, a tributary of the Snake River in western Idaho, that is believed to have been named for him. He is one of those noted as “killed” in Clark's 1825-1828 “List of Men on Lewis and Clark’s Trip.”

See also The Lesser-Known Members of the Corps.