Robert E. Lee, originally named Giraffe, was an iron hulled paddle steamer launched in Glasgow, Scotland in 1860. She was sold to the Confederate States Navy and renamed CSS Robert E. Lee. Commissioned in 1862 she was consequently used as a blockade runner. She was captured by the United States Navy in November 1863. She was renamed USS Fort Donelson and assigned to the North Atlantic Blockading Squadron. Fort Donelson was decommissioned in August 1865 and sold into civilian service under the name Isabella. In 1866 she was purchased by the Chilean Navy and remained in the service under the name Concepción until being sold in 1868.