Yes, we are, unfortunately, burying our grandfather.
If you will dial 1-800-535-1117, you can get assistance in getting your grandfather's DD214 or other discharge documents.
Will they be able to help me if I believe it has been almost 65 years or so since his military release date?
If he was discharged more than 62 years ago, then the National Archives opens all of those records to the public and ordering a copy will be easy.