The Merkwa - Rusiniak Family Tree

I am researching the ancesters in our family.The surnames being: Rusiniak, Rochowiak, Kasza, Krajnik, and Kocialski. All came from the Zakopane area of Poland.
The other surnames are: Merkwa, Zarajczyk, and Machkiewicz.
They came from either Hungary, Poland, or Germany. Members of these families immigrated to Erie County, New York (around the Buffalo area) in the late 1900's and the early 1900's.
Any assistance will be greatly appreciated. I will share information.