Mansfield Lovell

Mansfield Lovell (October 20, 1822 – June 1, 1884) was a major general in the Confederate States Army during the American Civil War. As military commander of New Orleans when the city unexpectedly fell to the Union Navy in 1862, Lovell was fiercely criticized by local citizens for failing to predict a naval invasion. The Confederate government also heaped blame on him, to deflect attention from their own error in leaving so few troops to defend the city. A Court of Enquiry later cleared him of charges of incompetence, but his reputation never recovered.
With the outbreak of the Civil War, Lovell left New York City and enlisted in the Confederate army. He was appointed as a major general on October 7, 1861, to replace Maj. Gen. David Twiggs in command at New Orleans, who had asked to be relieved because of health issues. According to the historian John D. Winters, the New Orleans citizenry expressed great disappointment over the Lovell appointment, for they had preferred either P.G.T. Beauregard or Braxton Bragg.
General Lovell was roundly criticized for his failure to prevent the fall of the city even though he did not have sufficient men or materiel to repulse the Union forces. He then commanded an infantry division under Maj. Gen. Earl Van Dorn at the Second Battle of Corinth in Mississippi. He was later relieved of command as a consequence of his poor performance at New Orleans. Stung by this reprimand, he demanded a court of inquiry, which met in April 1863 and declared him innocent of charges of incompetence. However, he was not given any assignments for the rest of the war.
Lovell farmed a rice plantation near Savannah, Georgia, immediately after the war, but a tidal wave destroyed his first crop, forcing him to return with his family to New York City. He resumed his career as a civil engineer and surveyor. Lovell worked under the supervision of former Union general John Newton on a project to clear obstructions from the East River at Hell Gate.
https://en.wikipedia.org/wiki/Mansfield_Lovell