My father was a WWII veteran and I have his Notice of Separation from U.S. Naval Service. Form NAVPerS-553. There is a certificate of elgilbility number stamped at the bottom of the form. I have helping my mother get Spousal Survivor benefits so I am gathering all the documents. Can I use this form when I apply? It is not a DD-214 which I'm not sure if they had that form number back in 1945.