Dorothy,
Was your Grandfather, Frederick, born in May of 1884 and the son of Michael Brosch born in March 1857? If these are the correct dates, then I may be able to help you. We are also in the process of doing the family tree of (Brosch/ Ksionzek/Bormann). Several of the Brosch families moved to the western part of PA while the others remained in NE PA. I would be very happy to share any of the information that we have accumulated.