Who was the Governor of Tennessee in 1857?

Andrew Johnson (born December 29, 1808 in Raleigh, North Carolina; died July 31, 1875 in Elizabethton, Tennessee) succeeded William B. Campbell as the seventeenth Governor of Tennessee, serving between October 17, 1853 and November 3, 1857. Following the end of Johnson's term as Governor, Isham G. Harris (born February 10, 1818 in Tullahoma, Tennessee; died July 8, 1897 in Washington DC) became the eighteenth Governor of Tennessee, serving between November 3, 1857 and March 12, 1862.