Day G. Turner was born on September 2, 1921 in Berwick, Pennsylvania. He was drafted for wartime service in the United States Army on September 16, 1943. Turner was an infantryman, and served in Company B, 1st Battalion, 319th Infantry Regiment, 80th Infantry Division. The division arrived in Europe for combat via Utah Beach in Normandy on August 5, 1944.
In addition to Staff Sergeant George D. Keathley, there were three other Medals of Honor awarded for heroism in Europe on September 14, 1944. The American heroes who earned them were First Lieutenant Edgar H. Lloyd, Sergeant Joseph J. Sadowski, and Second Lieutenant Thomas W. Wigle.