i am related to a Stanley Krolczyk ( he was my great Uncle), however, he is not the one who is the brother of your Grandfather Stephen.
Unfortunetally Stanley, my great uncle passed away 3 years ago. He lived in country outside the city of Buffalo.
However, i do recall venturing through a cemetary near his house and seeing a tombstone for a Michael Krolczyk, and i think for a Helen.
When i questioned him about them he said that he believed that they were cousins of his, but he didnt seem as if he knew much about them,as i think they may have been slightly before his time.
As I am often out that way I can visit the cemetary again and see if I can confirm and get dates if you would like