The below information is from Andrew Booth's record of Louisiana Confederate Soldiers...

Carroll, James A. (also Cerrol, James)
Pvt. Co. E. 8th La. Infty.
Enlisted June 19th, 1861, New Orleans, La.

Present on Rolls to April, 1862.

Roll for Feb. 28th to June 30th, 1862, Absent.
Wounded,

Rolls from July, 1862, to May 14th, 1863, Absent. Sick.

Present on Rolls, May, 1863, to Oct., 1864.

Paroled at Appomattox Court House, Va., April 10th, 1865.

Eyes black, hair gray, complexion dark, height 5 ft. 6 in.,

Residence: Franklin Parish, La.
Born: Louisiana
Occupation: farmer
Age when enlisted: 31
Married.

I didn't find a Louisiana Confederate pension application for him but you still may wish to order his service records. Click on the link at the top of this page titled Military Records Research Services and contact Alan Pitts from that page. Tell him we sent ya :0)

You will be pleased to learn your ancestor served under General Stonewall Jackson in the spring of 1862. You will need those service records to try and determine an exact place of his wound.