When the Civil War erupted, Confederate Secretary of the Navy Stephen Russell Mallory knew that the South could only counter and defeat the larger US Navy if ironclads were employed. Mallory immediately ordered the construction of ironclads. The first project was the conversion of USS Merrimack into CSS Virginia at the Gosport Navy Yard, Portsmouth, Virginia. Mallory then ordered two ironclads laid down in New Orleans, and another two built in Memphis, Tennessee. These vessels could not be built fast enough to stem the Union’s advance against Confederate ports.
The urgent need for ironclads was recognized by New Orleans Commission Agent Captain John Stephenson who also served as secretary of the New Orleans Pilots’ Benevolent Association. Stephenson went to meet with President Jefferson Davis in Montgomery, Alabama, to ask for the use of a heavy tug, altering it to make it “comparatively safe against the heaviest guns afloat, and by preparing … bow in a peculiar manner … rendered them capable of sinking by collision the heaviest vessels ever built.” With Davis’s approval, Stevenson returned to New Orleans to build an ironclad privateer, quickly raising more than $100,000 in subscriptions.