WWII was the biggest war in world history. The US alone had approximately 16 million people serve in it's various military branches. There is no big goverment index with each of these people listed. The only way you can get a line on this gentleman's military service is to have a family member tell you the specifics or to request his personell file from the National Archives. There are some web files that appear on the National Archives site that list a lot of personal facts about all the enlistees/draftees over the period of the war. But, it's all details from their civilian lives like dates, places, marital status, education, etc.