Perry:

I agree with Alan, the death date given for Timothy Haney of the 48th. Illinois suggests he occupies this grave site.

Name: Timothy Haney
Residence: Johnsonville, Illinois
Enlistment Date: 2 Feb 1864
Side Served: Union
State Served: Illinois
Service Record: Enlisted as a Private on 2 February 1864.
Enlisted in Company I, 48th Infantry Regiment Illinois on 7 Mar 1864.
Killed Company I, 48th Infantry Regiment Illinois on 22 Jul 1864 at Atlanta, GA.

Source: Ancestry.com

He is also listed on the Personel Killed list at this web site.
http://black_eagle_129.tripod.com/

Hope this helps,
Mitchell Sanders