Samuel Francis Du Pont

Samuel Francis Du Pont (September 27, 1803 – June 23, 1865) was a rear admiral in the United States Navy, and a member of the prominent Du Pont family. In the Mexican–American War, Du Pont captured San Diego, and was made commander of the California naval blockade. Through the 1850s, he promoted engineering studies at the United States Naval Academy, to enable more mobile and aggressive operations. In the American Civil War, he played a major role in making the Union blockade effective, but was controversially blamed for the failed attack on Charleston, South Carolina in April 1863.
Towards the end of 1862, Du Pont became the first U.S. naval officer to be assigned command over armored "ironclad" ships. Though he commanded them ably in engagements with other ships, they performed poorly in an attack on Fort McAllister, due to their small number of guns and slow rate of fire. Du Pont was then given direct orders from the Navy Department to launch an attack on Charleston, South Carolina which was the site of the first shots fired in the Civil War with the fall of Fort Sumter and the main area in which the Union blockade had been unsuccessful. Though Du Pont believed that Charleston could not be taken without significant land troop support, he nevertheless attacked with nine ironclads on April 7, 1863. Unable to navigate properly in the obstructed channels leading to the harbor, his ships were caught in a blistering crossfire, and he withdrew them before nightfall. Five of his nine ironclads were disabled in the failed attack, and one more subsequently sank.
https://en.wikipedia.org/wiki/Samuel_Francis_Du_Pont