“George H. Crawford was shot through the head, but did not expire immediately – he made no complaint and met his fate with calm resignation...He fell in Glazier’s Field near the family grave yard”
Source: William Terrell Millican to Wife, July 11, 1862. Confederate Reminiscences and Letters, Vol. VII, pp. 181-182.
Millican was the first Captain of the Tugalo Blues. By the time he wrote these lines, he was Lt Col Millican, acting commander of the 15th, and the battle was Malvern Hill. He was promoted Colonel in time to be mortally wounded at Sharpsburg.
Off hand, I can't say where Glazier's is, but your great-grandfather's remains are probably still there, in whatever may remain of the graveyard.
hope this helps,