Your Grandfather from your description sounds like a Man’s Man. Your being proud is justified
He worked on all kinds of cool stuff. I bear his last name but he was actually a step-grandad. Nonetheless, liked the old boy and he was always Grampa to me (my other one had died when I was real young).
He worked some crazy construction projects - dams, ICBM silos. Wow.
He stepped in and took care of my grandmother and aunts and uncles (when they were young) and my dad.