You can procure his records through a service provided by these Message Boards at:

http://history-sites.com/research/

They consist of 49 cards.

It is possible that he is buried in the Confederate cemetery at Marrietta, Ga.

…….

Edward L. Ashby, age 34, 3rd/2nd Lieutenant, Captain Brice Hartgraves’ Company, Nelson’s Regiment Texas Volunteers,* enlisted October 18, 1861 at Houston by Lt. Sparks for the war, captured at Fort Hindman, Arkansas Post, Ark., January 11, 1863, forwarded to Camp Chase, Ohio, arriving January 30,** transferred to Fort Delaware, Del. April 10, 1863, paroled and transferred April 29 to City Point, Va. for exchange, admitted 3rd Div., 17th Army Corps Hospital, Army of Tennessee, USA, July 22, 1864, gunshot wound, died August 4, 1864

* This company subsequently became Company H, 10th Regiment Texas Infantry

** age 36, 5’ 10”, grey eyes, sandy hair, fair complexion

M323: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Texas

…………..

Report of Capt. John A. Formwalt, Tenth Texas Infantry, of operations
July 21 and 22.

HDQRS TENTH TEXAS REGT. VOL. INFANTRY,
In Front of Atlanta, Ga., July 29, 1864.

SIR: In compliance with your order of this instant I will proceed
to give you an account of the two days' (21st and 22d instant) engagement
with the enemy, Col. R. Q. Mills being in command up to 2
o'clock on the 22d, when he received a painful wound by a shell.

On the morning of the 21st my regiment was halted in the edge of
an old field and in the center of the brigade, confronting the enemy's
works and about 400 yards from them. Here we threw up temporary
works under a heavy fire. About 12 m. the enemy advanced
a line of infantry and drove in our pickets and made an assault upon
our works, and were repulsed with heavy loss. During the day we
were under a very heavy fire both of artillery and infantry, suffering
mostly from the former, our loss being 8 killed (among whom was
our gallant captain, James W. Bennett, commanding Company B) and
12 wounded. At night we received orders to move by the right
flank. Marched to Atlanta; rested some three hours, at the expiration
of which time we received marching orders.

On the morning of the 22d we formed our command in line of
battle in rear of the enemy and upon their left, which consisted of a
large force, and the same who we encountered on the day previous.
Our skirmishers having been thrown out, orders were given to forward,
which we did. We advanced about one mile and a half and
came up with them about 2 p. m., causing them to abandon all their
artillery and driving them from their three rear lines of fortifications;
but having no support upon our right we were forced to fall
back to the second line of works, where we reformed. In this charge
we lost 19 men and officers captured. We brought off 15 horses and
mules, 6 pieces of artillery, and 30 horses to same. Our lines being
reformed, we were again ordered to advance and drive the enemy
from the works which we had so recently held. We did so, but having
no support upon our right, as in the first attack, were forced to
fall back.

In both charges we captured and brought out 50 prisoners, our loss
being 5 killed (among whom was Lieut. Edward Ashby, commanding
Company H) and 15 wounded. It is impossible to say how
many prisoners we captured during the day, as many who were
captured and sent to the rear were picked up by other regiments and
stragglers.

I have the honor, sir, to be, your most obedient servant;

J. A. FORMWALT,
Capt., Cmdg. Regt.

Lieut. S. G. SNEED,
Acting Assistant Adjutant-Gen.

Source: Official Records
CHAP. L.] REPORTS, ETC.--CONFEDERATE. PAGE 750-74
[Series I. Vol. 38. Part III, Reports. Serial No. 74.]