To be honest, I don't have documentation to show that it's the same family. But, I would guess that these men are the same as the ones shown in the information I've been given. I'd seen the Vietnam list as well and figured that it's "my" Hilaire there. That's cool that you were a penpal with Hilaire, Jr.
I have wondered why my dad didn't know more of his Andry cousins but, for some reason, his dad just didn't hang out with his Andry family much. My dad left NOLA when I was in elementary school and his parents lived there until their deaths, so you'd think they would have known more of their family.
Thanks for sharing!
Lisa