... scheme of army corps badges on the 21st of March, 1863, which was the first systematic plan submitted in this direction in the armies. Hooker took command of the Army of the Potomac Jan. 26, 1863. General Daniel Butterfield was made his chief-of-staff, and he, it is said, had much to do with designing and perfecting the first scheme of badges for the army, which appears in the following circular ;-- Headquarters Ar...