Thanks Ron, that's what I'm looking for. I've finished going through the pension now and this is what I have to work with from the witnesses who submitted statements. Some have him wounded July 1, some on July 26, and one on August 6:

…at or near a place called Powder Springs, in the State of Georgia on the 26th day of July, 1864, he was injured by reason of the explosion of a shell from the enemies guns, said shell striking a piece of timber on which he was lying at the time.

...on the 1st day of July 1864 he was a private in Company B, 91st Regiment of Indiana Volunteer Infantry; that on said day he was ordered by his commanding officer together with his company to fall in line of battle while in front of enemy at a place called Powder Springs in the State of Georgia and on the said day while skirmishing with the enemy and under fire of the same he was ordered to lie down together with his company and while so lying down a shell from the enemy’s gun striking underneath him thereby bruising and wounding him

.... Entered General Hospital Evansville, Ind. again Jan. 3, 1865 from Marietta, Ga with contusion left hip and was discharged from the service June 4, 1865.

...(statement from record and pension office which appears to be from his CSR which I don't have): soldier was wounded in action near Atlanta, GA Aug 6, 1864. (This would be Utoy Creek.)

...on or about the 1st day of July, 1864, at or near Kennesaw Mountain, State of Georgia, said soldier received a over heat while making a charge on the enemy (another statement says while making a forced march to the right), that said soldier with a great number of others was over heat and almost suffocated from the heat. He still did some service from that time til he was sent to hospital a short afterward having received a shock from a shell.

...….at a place called Powder Springs in the State of Georgia while in the line of duty and under fire of the enemy and while lying down was bruised and wounded by a shell from the enemies guns striking under him in such a manner as to cause said wounds in the hip and testicles…

July 26th, 1864: While skirmishing near Powder Springs in the state of Georgia he was bruised in the hips and testicles which caused the loss of one of the testicles by a shell from the enemies guns