 In April 1863 she was briefly the flagship of Rear Admiral David Dixon Porter.After the end of the Civil War, "General Lyon" arrived at Mound City, Illinois, on 17 February 1865, decommissioned on 3 August 1865, and was sold to H. L. Lee 17 August 1865.She was re-documented for commercial service as "Alabama", and was destroyed by fire at Grand View, Louisiana, on 1 April 1867.