President James Monroe was authorized on March 3, 1821, to take possession of East Florida and West Florida for the United States and provide for initial governance. Andrew Jackson served as the federal military commissioner with the powers of governor of the newly acquired territory, from March 10 through December 1821. On March 30, 1822, the United States merged East Florida and part of what formerly constituted West Florida into the Florida Territory. William Pope Duval became the first official governor of the Florida Territory and soon afterward the capital was established at Tallahassee, but only after removing a Seminole tribe from the land. The new capital of Tallahassee was located approximately halfway between the old colonial capitals of Pensacola and St. Augustine. Duval's "government palace for a time was a mere log house, and he lived on hunters' fare."