I have a copy of my grandfather's WWI draft registration card but no idea if he ever was drafted. No surviving family members to contact, no photos, no letters, no markings on his grave. I only have a story from my father who served in WWII, and died 45 years ago, that as a boy he remembered hearing the horror stories of battle in WWI, but I don't know if he was talking about my grandfather's stories. He was from Nebraska but I have not found any reference to him in the limited resources available. Is there any way, armed only with a draft registration card and the knowledge that he died in 1944, that I can find out if he was a WWI veteran?