
The image is a historical letter dated May 8, 1863, from the "Office of The Assistant Commissary of Musters, Saint Louis District." The letter is addressed to the Commanding Officer of the 21st Regiment OVI (Ohio Volunteer Infantry), and it contains official communication concerning a Private Reuben Bishop of that regiment. The letter, signed by Captain G.W. Quick of the 13th U.S. Infantry and Assistant Commissary of Musters, states that Private Bishop of the specified company was discharged on January 21, 1863. This discharge was carried out to enable Bishop to enlist in the "Mississippi Marine Brigade," under Brigadier General Ellet's command, following instructions received from the Secretary of War. The letter is neatly handwritten, with formal language, and reflects the bureaucratic military procedures of the Civil War era.