My g-g Grandfather, Frederick Ernst, Co. E., 43rd..Regiment, was wounded and captured on Sept. 20, 1863..in the fighting at Snodgrass Hill...He was released and captured again at Petersburg on March 25, 1865...He was released at Point Lookout, Maryland on June 11, 1865. He was living in 1880 in Marengo County...I would love to know his burial place so I could place a marker on his grave...