USS Lancaster (1855)
The USS Lancaster was a sidewheel civilian steamer tow boat built in 1855 at Cincinnati, Ohio. Originally it was named Lancaster Number 3 then the Kosciusko. In March through May 1862, she was purchased and converted to a ram by Lt. Col. Charles Ellet, Jr. for the War Department early in April 1862 to serve during the American Civil War.
Read more about USS Lancaster (1855): Battle of Memphis, Battle of Vicksburg, The Sinking of The Lancaster