from her 50-pounder Parrott rifle and 14 rounds from the 32-pounder broadside gun. However, late in the afternoon, the Union Army commander, General Benjamin Franklin Butler, decided that the Confederate works could not be taken and ordered his troops to reembark. Keystone State withdrew to Beaufort for coal and supplies. Second Battle of Fort Fisher, January 1865 Porter immediately began planning for a second assault, this time with a different Army general in charge of the land forces. Most of the fleet that participated in the first battle also joined the second fight. Keystone State was one of three exceptions. She was loading coal in Beaufort when the fort fell. She arrived at the scene of the battle on 16 January 1865 with a coal schooner in tow. After Fort Fisher fell, the campaign to take Wilmington continued on the river. On 20 January 1865, Keystone State towed the monitor Monadanock over the Cape Fear River bar. Admiral Porter requested use of the monitor Montauk for the final assault on Wilmington, and Keystone State was assigned to tow the ship up the Cape Fear River on 21 January 1865. During February 1865, Keystone State supported Army advances along the shore of the River. Porter's success in closing the last major Confederate port meant that blockaders such as Keystone State no longer had a role to play. She got underway on 13 March 1865 towing monitor to Hampton Roads, and arrived at Baltimore, Maryland on 20 March 1865. Commander Rolando was detached from the ship and Keystone State decommissioned on 25 March 1865. She was sold at auction at Washington, D.C. on 15 September 1865 to Marshall O. Roberts for $54,000. Commercial service (18661872) North American Steamship Company (18661868) Marshall Roberts led a commercial shipping business which sailed between New York and San Francisco via ships in the Atlantic and Pacific connected by an overland crossing of Nicaragua. He sent Keystone State to the Morgan Iron Works in New York to be converted into a civilian merchant vessel suitable for this trade. The ship was renamed San Francisco. Roberts sold control of the company to William H. Webb in 1866 and it became known as the North American Steamship Company. San Francisco completed multiple trips between New York and Greytown, Nicaragua before the company closed in 1868. New York and Mexican Mail Steamship Line (18661869) Beginning in July 1868, Webb chartered