On March 16, 1861, the Confederate Congress recommended that William Yancey, Pierre Rost, and Dudley Mann be appointed commissioners to England to negotiate for recognition.
Also on this date, in Arizona, a convention at Mesilla votes to leave the Union and join the Confederacy. The Confederate government would later establish a territorial government for Arizona.
Lieutenant Colonel Robert E. Lee of the 1st U.S. Cavalry was promoted to colonel. The commission would be signed by Lincoln on March 28.