His primary residence was at Bluff Hall in Demopolis, with a country estate nearby at Bermuda Hill. Lyon was secretary of the State Senate from 1822 to 1830, and then served in the Alabama State Senate from 1833 to 1834. He represented Alabama's Fifth District in the United States House of Representatives from 1835 to 1839.
Lyon was a resident of Bluff Hall in Demopolis and Bermuda Hill, holding positions as secretary of the State Senate and member of the Alabama State Senate. He represented Alabama's Fifth District in the United States House of Representatives from 1835 to 1839.