I'm looking for information on my great grandfather Calvin Alonzo Bates born June 18,1916 unknown location and died December 12,1958 in Oklahoma I beliive in the Tulsa Area. He was married to Thelma Ladd born July 13,1916 and died December 7, 1984. On his headstone it reads Calvin A Bates, Illinois, TEC4 US Army World War II. I am clueless about military history. His parents were William A and Allie Bates and I have very little information on them. Please if anyone knows anything or could help me in any way I would be extremely appreciative.