Note: The April 30,1864 muster roll is the last surviving muster roll for Company I, hence, we are unable to ascertain his subsequent service
M266: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Georgia
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4th Regiment, Georgia Cavalry (Clinch's)
4th (Clinch's) Cavalry Regiment was formed in January, 1863, using the 3rd Georgia Cavalry Battalion as its nucleus. Many of the men were from Wayne, Glynn, and Camden counties. The regiment served on the Georgia coast until the summer of 1864 when it was assigned to M.W. Hannon's command. It skirmished in Northern Georgia and Alabama, took part in the defense of Savannah, and was active in the campaign of the Carolinas. A report stated that the unit contained 200 officers and men in March, 1865, and was included in the surrender of the Army of Tennessee. Its commanders were Colonel Duncan L. Clinch, Lieutenant Colonel John L. Harris, and Major Jesse C. McDonald.
http://www.civilwar.nps.gov/cwss/regiments.cfm
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SMITH, John J., Corporal, Company "I", 4th Ga. Cavalry. Buried at Shiloh Primitive Baptist Church, Blackshear, Ga. Contributed by Mary Lott Walker
http://www.rootsweb.ancestry.com/~gabrantl/4th-cav.html
See also: http://battleofolustee.org/4th_ga_cav.html
http://www.researchonline.net/gacw/unit17.htm
http://www.glynngen.com/military/civilwar/4thga/DLClinch.htm