Scott County, Kentucky, court of appeals judge. Scott County, Kentucky, native. Son of John Alvin Duvall. Married to Virginia Hotlzclaw Duvall in Scott County, Kentucky, on February 8,1843. Father of Lizzie Duvall, Tommy Duvall, Johnny Duvall, Henry Duvall, Alvin Duvall, Jr., Virginia Duvall, Wilenia Duvall Sneed, Mary Stites Duvall, and Sally Duvall Greenhow. Graduated from Georgetown College in Georgetown, Scott County, Kentucky, in 1833. Graduated from the Law Department at Transylvania University in Lexington, Fayette County, Kentucky, in 1840. Practiced law in Scott County from 1840 to 1852. Member of the House of Representatives of the Commonwealth of Kentucky from Scott County in 1850. Judge of the 9th Judicial District of the Commonwealth of Kentucky from 1852 to 1856. Judge of the Court of Appeals of the Commonwealth of Kentucky from 1856 to 1864. Chief justice of the Court of Appeals from 1862 to 1864. Fled to Canada in 1864. Attorney in Georgetown, Scott County from 1864 to 1866.