Imagine ringing a doorbell and someone answers. Was your grandpa named such and such? You get a positive. We're you close? A mos definitely positive. Can you imagine saying, "then I think he would like you to have these."
I found my father's navy bud online. Both on the USS Antietam, CV-36. This guy takes a vacation to Maine to just say hi to me. All I do is hand him my dad's dog tags(pop died of bone cancer in '94). I couldn't hold back the tears.
Hope you find a name and make the circle whole.