From the Alabama Dept of Archives & History, http://www.archives.state.al.us/civilwar/index.cfm ,comes the following:
Last Name: Clark
First Name: C MI: H
Branch: Infantry
Regimental Unit: 3rd Alabama Regiment
Company Unit: K
Co. Unit Name: Mobile Rifles
Authority: Printed roll from the Mobile Daily Item of 1910/04/06.
Enlistment Information: Private.
Remarks: Capt L T Woodruff.
Last Name: Clark
First Name: Charles MI: H
Regimental Unit: 3rd Alabama Regiment
Company Unit: K
Authority: Special order no. Regimental Court Martial for 3rd Reg. 1862/01/07, Camp at Mosley's Church near
Enlistment Information: Private.
Remarks: Charge: Disobedience of orders,signed by R W Mayrant, Lt Co. K, 1862/01/04. Sentence: 15 days extra Guard duty, alternating everyday, and confined in prison until 5pm, 1862/01/06. Approved by C A Battle, Lt Col. comdg. 3rd regiment.
Remarks con't: (authority con't) Norfolk, Va. Signed by Capt Swanson, President and 2nd Lt Witherspoon, Recorder.
And finally, could this be your Charles H. Clark?
Last Name: Clarke
First Name: Charles MI:
Regimental Unit: Alabama
Authority: Roster of the Confederate Dead in the Fredericksburg Confederate Cemetery, Compiled by Raymond W.
Jim Martin