Steve,
From the American Civil War Research Data Base we find the following information.
George Martin
Robert M. Todd
Residence Middlesex County VA; Enlisted on 3/8/1862 as a Private.
On 3/8/1862 he mustered into "I" Co. VA 55th Infantry (date and method of discharge not given)
He was listed as:
* Absent, sick 7/29/1862 (place not stated)
* Returned 1/15/1863 (place not stated) (Estimated day)
* Hospitalized 6/15/1863 (place not stated) (Sick)
* Deserted 7/10/1863 (place not stated) (Deserted from hospl)
* Under arrest 8/31/1863 (place not stated)
* Court martialed 10/7/1863 (place not stated)
* Returned 10/7/1863 (place not stated)
* Deserted 11/10/1863 (place not stated)
* POW 11/11/1863 (place not stated)
* Confined 11/19/1863 Old Capitol Prison, Washington, DC
* Oath Allegiance 3/19/1864 Old Capitol Prison, Washington, DC (Was released and sent to Philadelphia, P)
Promotions:
* Corpl 6/15/1862 (Estimated day)
He also had service in:
"A" Co. VA 109th Militia (Prior service, also in Co B)
He was described at enlistment as:
5' 9.0", light complexion, dark eyes, brown hair
Sources used by Historical Data Systems, Inc.: - The Virginia Regimental Histories Series