During the 2nd day at the Battle of Gettysburg there were only three Texas Regiments in Robertson's Brigade who made a series of charges against Union Artillery at Gettysburg at Seminary Ridge.

The below information came from the Medical and Surgical History of the War of the Rebellion .

"Frank G-------, a private in a Texan regiment, was wounded at the battle of Gettysburg, in the left thigh, by a grapeshot, which entered two inches below the trochanter major, shattered the bone up into the neck, and lacerated the soft parts terribly between the place of entrance and the knee. He remained on the battle field from the 2nd until the 4th day of July, with very little attention, until he was brought to the hospital of the Fifth Corps. After a consultation with a number of surgeons and the conclusion being in favor of amputation at the hip, the patient was placed upon the table and when fully under the influence of chloroform, Surgeon B. Rohrer 10th Pennsylvania Reserves, performed the antero-posterior operation, assisted by Dr. Joseph A. Phillips and Henry Grimm, Surgeon 12th Pennsylvania Reserves. Surgeon Philips controlled the femoral artery and not over three ounces of blood were lost. Death followed in thirty-six hours.”

Perhaps someone with more time and expertize might be able to identify this soldier.