dear Jane,
Your polish names...
I recognize surname KLAIBER. Have noticed in W.C. Illinois area. Similar name I recognize from same are is Sikorska/Sikorski.
My ancestors of W.C. were called Krawiecki... Is a bit similar to Krawezyk.
Is my believe my ancestors Krawiecki came to U.S. circa 1870-1871.
Found a brother to my grandfather in 1880. Not my grandfather until 1900-up.
Barbie