A narrow focus can be a hindrance.

I missed the obvious because I was too tightly focused on one name: Albert.

Albert Filek and his wife, Katarina brought their two children to the US in 1864. They claimed their homeland as Bohemia.

After much searching for immigration and naturalization records, it FINALLY occurred to me that, in his place of birth, his name would not have been Albert; it would have been Vojtech.    I feel like such an idiot. I should have known that!  But better late than never, I guess.