1845 DR. DAVID CAMDEN DE LEON (1816-1872) (USA)
Was known as a hero of the Mexican War. De Leon served as a doctor under General Zachary Taylor and took charge of the troops after all the other officers were killed. He succeeded in not only saving the troops but encouraging them to counter-attack. For his action, he won a Congressional Citation and earned the nickname of the "Fighting Doctor." He was selected in 1861 by Confederate President Jefferson Davis as the Surgeon General of the Confederacy.