I would imagine you would find records of the various Confederate Homes at the Georgia State Archives in Morrow, just below the airport, or perhaps the Atlanta History Center across from the Governor's mansion. Then there may be records at the Fulton County Historical Society and also the UDC.

Benjamin G. Neal

Residence Fulton County GA; 27 years old.
Enlisted on 3/4/1862 as a Private.
On 3/4/1862 he mustered into "I" Co. GA 42nd Infantry
He was Surrendered on 4/26/1865 at Greensboro, NC
Other Information:
born 12/27/1834 in Cobb County, GA
died 9/17/1912 in Confederate Soldiers' Home, Atlanta, GA
Sources used by Historical Data Systems, Inc.:
- Roster of Confederate Soldiers of Georgia 1861-1865