Okay. With that spelling, Blankenship, you gets:

J.A. Blankenship
Regiment Name 11th Virginia Infantry
Side Confederate
Company I - Rough and Ready Rifles, Fauquier & Culpeper Counties
Soldier's Rank_In Private
Soldier's Rank_Out Private
Film Number M382 roll 5

And the following:

Blankenship, Charles T.
Co. C - Clifton Grays, Campbell County Riflemen
Private Private

Blankenship, James E.
Co. E - Lynchburg Rifles, Campbell County
Captain Captain

Blankenship, Joseph T.
Co. D - Fincastle Rifles, Botetourt County
Private Private

Blankenship, Leslie C.
Co. C - Clifton Grays, Campbell County Riflemen
Private Private

Blankenship, S.C.
Co. C - Clifton Grays, Campbell County Riflemen
Private Private

Blankenship, William H.
Co. D - Fincastle Rifles, Botetourt County
Private Private

========================================================
You also get:

J.A. Blankenship
Regiment Name 30th Battalion Virginia Sharpshooters
Side Confederate
Company C - Western Artillery
Company D - Capt Charles E. Vawter's Co
Soldier's Rank_In Private
Soldier's Rank_Out Private
Alternate Name James A./Blankenship
Film Number M382 roll 5

Which could be him.......

30th Battalion, Virginia Sharpshooters (Clarke's)
30th Battalion Sharpshooters was organized in August, 1862, with six companies. The unit was assigned to G.C. Wharton's and A. Forsberg's Brigade and fought in various engagements in East Tennessee and the Shenandoah Valley of Virginia. After the Battle of Waynesborough, it disbanded. Lieutenant Colonel J. Lyle Clarke and Major Peter Otey were in command.

Blankenship, Noah G.
Co. B - Capt Napoleon B. French's Co.
Private Private

Blankenship, Thompson
Co. C - Western Artillery
Co. D - Capt Charles E. Vawter's Co
Private Private

Blankenship, Winston
Co. B - Capt Napoleon B. French's Co.
Private Private

Blankenship, Winton
Co. B - Capt Napoleon B. French's Co.
Private Private

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What you need to do is order his complete military record which you can do by clicking on the box at the top of the page which reads, in part, "Order your veteran's records".