John D (Daniel?) Johnson b. <1850 Walton County, GA

Hello Johnson follks. Hoping someone can help me with a simple query. I am trying to connect John D (Daniel?) Johnson to his parents. All I know is his father's name was Alex?

John D enlisted in Co F 16th Regiment GA Vol Inf as a Corporal on July 18, 1861. Co F was organized in Walton County GA. The 16th GA was sent to Richmond and assigned to Howell Cobb's Brigade. John D Johnson was "wounded slightly in the hand" at the Battle of Malvern Hill (near Petersburg) on July 1 1862. He was hospitalized in Richmond July 4-8 and furloughed for 50 days. He wound up dying in Petersburg, VA July 25, 1862. A claim for his pay and $ owed him was filed by his father "Alex Johnson" on Jan 23, 1863.

Any help appreciated.