Grave of Capt. Charles G. Campbell - Bainbridge, Georgia
http://www.floridawar.com/2012/07/grave-of-capt-charles-g-campbell.html

http://www.exploresouthernhistory.com/oakcity.html

http://www.oocities.org/iamaleo42652/pageb.html

https://familysearch.org/photos/stories/14062902

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Charles G. Campbell recruited his Independent Company of Georgia Siege Artillery in Bainbridge, Georgia and St. Marks, Florida starting in March 1863. It formed the garrisoned of Fort Ward at St. Marks (a Confederate reconstruction of Spanish Fort San Marcos de Appalachian) As of January 15, 1864, a report by Captain L. J. Smith state the following.

“I inspected the company of heavy artillery commanded by Captain Campbell acting as a garrison to the batter of St. Mark’s; 125 men; armed with British muskets, caliber .75, in good condition; ammunition dry and in accouterments of leather and in good condition , dry and in serviceable order; have 70 rounds of ammunition for arms. This battery mounts 5 guns. The battery is well supplied with the requisite ammunition, and the ordnance stores are in good condition.”
http://www.boyettandburkett.com/Civil_War_Ancestors.html