Rockstar, I'm wishing you good luck in this search.
As I've mentioned in the past, ET2SN was literally how I signed off on forms in the Navy. Everyone could figure out who I was once they saw the last name on my shirt (and stopped laughing).
My mother's side of the family came to the US from a town in what is now Slovakia. My grandmother on my father's side of the family was Irish and my grandfather was where the trouble starts. His family probably came here from what is now the Czech Republic. I say probably because they just stopped talking about their past so they wouldn't look like "green horns" in the US.
Here's the kicker, when they emigrated the family name was changed by the clerks on Ellis Island because it was easier to spell. My
real last name could be a variation of "Siemann" or "Zemen" or something in between.
If I knew the true spelling it would be easier to track down where half of my ancestors lived.
Which brings up my favorite boot camp story.
After we got our uniforms issued, we had to stencil our names on them. The guy in the rack next to mine was stenciling "ZEMEN" on his shirts. I showed him one of my shirts and said, "You know, we might be related..". His family came over to mine coal in West Virginia but that's as far as that lead went.
I had to give up and accept what I've got, even though I know its wrong.