1822 – April 17: William Pope Duval became the first territorial Governor of Florida. In 1821, Florida became a U.S. Territory. Duval was named United States Judge for the East Florida district on May 18, 1821. On April 17, 1822, President James Monroe appointed him as the first non-military governor of the territory, succeeding General Andrew Jackson. He was reappointed by President John Quincy Adams and President Andrew Jackson.