Describing the intense counter-battery fire his men received at Antietam, Confederate artillerist, Colonel Stephen D. Lee wrote, "Pray that you may never see another Sharpsburg. Sharpsburg was artillery Hell." On the morning of September 17, S.D. Lee’s artillery line was placed on the high ground adjacent to the Dunker Church. The caisson, visible in the image, probably belonged to his battalion. S.D. Lee was not related to General Robert E. Lee. However, Robert E. Lee did have a son who served in the artillery and fought at Antietam. Lee’s youngest son, Robert E. Lee, Jr., was a member of the Rockbridge Artillery. At one point during the day, Robert Jr. approached his father and asked him if he was going to send him back into battle. Lee replied, "Yes, my son, you all must do what you can to help drive these people back."