Two cards in his file from the 3rd Confederate Infantry record:

John S. Marmaduke, Lt. Col., appointed 1st Arkansas Battalion September 19, 1861, to take rank September 13, date of confirmation, December 13, 1861, appointed Colonel, 3rd Confederate Regiment January 28, 1862, to take rank January 1, 1862,

M258: Compiled Service Records of Confederate Soldiers Who Served in Organizations Raised Directly by the Confederate Governmetn
..............

John Sappington Marmaduke

Residence was not listed; a 28 year-old US Army Officer.
Enlisted on 8/1/1861 as a Lieut Colonel.
On 8/1/1861 he was commissioned into Field & Staff AR 1st Battn Infantry
He was discharged for promotion on 1/1/1862
On 1/1/1862 he was commissioned into Field & Staff CS 3rd Infantry
He was discharged for promotion on 11/15/1862
On 11/15/1862 he was commissioned into CS Gen Staff
(date and method of discharge not given)

He was listed as:
* Wounded 4/7/1862 Shiloh, TN
* POW 10/25/1864 Marais Des Cygnes, KS
* Confined 11/10/1864 Fort Warren, MA (Estimated date)
* Released 8/15/1865 Fort Warren, MA (Estimated day)

Promotions:
* Colonel 1/1/1862 (As of 3rd CS Infantry)
* Brig-Gen 11/15/1862
* Major-Gen 3/17/1865

Other Information:
born 3/14/1833 in Arrow Rock, MO
died 12/28/1887 in Jefferson City, MO
(Graduate USMA 1857)
After the War he lived in Jefferson City, MO

Sources used by Historical Data Systems, Inc.:

- Index to Compiled Confederate Military Service Records
- Field Officers, Regiments & Battalions of CS Army
- Generals in Gray, Lives of the Confederate Commanders
(c) Historical Data Systems, Inc. @ www.civilwardata.com

NOTES:
MARMADUKE, JOHN S.
MISSOURI.

First lieutenant, Corps of Cavalry, C. S. A., March 16,
1861.

Colonel, Third Confederate Regiment, January 1, 1862.

Brigadier general, P. A. C. S., November 15, 1862.

Major general, P. A. C. S., March 17, 1865.

Died December 28, 1887.