What was William Clark's job after the Lewis and Clark expedition?

Clark would serve as governor of the Missouri Territory and he continued to lead Native American affairs for 30 years, enjoying a high reputation as an authority on the West. Many hunters, adventurers and explorers would visit him in St. Louis for advice. He died at age 69 on September 1, 1838, while at the home of his son, Meriwhether Lewis Clark.