This was definitely a reunion of what was left of the 6th Alabama, Infantry Regiment, Company E, after the Civil War. My grandfather (second from the right in the back row) was with his remaining troops when they were captured by Union soldiers at South Mountain on July 5, 1863, while on their way to Richmond. He was then transferred to Ft. Delaware on July 9, 1863. From there, he was put aboard a ship where a surgeon noticed the infection in his left arm, which had been caused by a medical assistant at Ft. Delaware. The surgeon told my grandfather that if he didn't completely remove the arm, he would be dead within the next couple of days, and took it off at the shoulder. This information is in a paper he dictated to his sister after the war, wherein he credits the Union surgeon for saving his life. He was paroled at Fort McHenry, Maryland, with a Surgeon's Certificate of retirement dated April 3, 1865 at Montgomery, Alabama.