Army Cadets and Navy Midshipmen are considered officers for observance of rank, hence all enlisted ranks are required to salute Cadets and Midshipmen.
The lowest rank was a private.
He was a Major.
His rank was that of General, the highest rank attainable in the army of the Confederacy during the Civil War. He held the rank of Colonel in the United States Army before he resigned his commission.
Commander in Chief.
General and commander of northern forces towards the end of the civil war
Subdued rank insignia in the US Armed Forces wasn't introduced until the Vietnam war.
The rank was officially "musician". Drummers, fifers, and buglers were all classified as musicians.
Officers of the lowest Naval rank (Midshipmen) had the duty of reefing down the sails. They were referred to as "Reefers".
The Confederacy had huge expenditures during the US Civil War. This hampered the rate of pay for the common soldier at the rank of private. Pay for them was $11 per month.
== == Major General.
As might be expected, the Union had a number of officers with the rank of general in the US Civil War. At the end of the war, however, US Grant was in charge of the Union's fighting forces.