The county's economy was based in agriculture with corn and cotton, followed by over 500,000 peach trees in production in the 1920s, watermelons in the 1930s, and the state's top record production of cane syrup in the 1940s. The 1936 discovery of oil on C.G. Hughes' land in the north part of the county led to a more diversified economy, with oil production continuing today combined with light industry, manufacturing, and diverse agricultural endeavors. Mount Vernon, as county seat, was assured a continuing vital existence as the economic center for the county. The town boasted churches, doctors, lawyers, and many varied stores in a time before people had the ability to travel far. The town voted to incorporate in 1910 under a mayor/council form of government. In 1911 a bond issue was passed to create a public waterworks. Electric and gas utility service followed.