To George & Cowz186,
I have lots of Duplaga relatives in Cleveland. My grandfather & 3 of his siblings came from Brzozow, Poland in the early 1900's. Their parents were Josephus Duplaga & Marianna Szuba Duplaga. Above Josephus was Thomas Duplaga, & Francisca Czuchra. I'm not familiar with Golcowa?
If anyone reading this makes any connections-please contact me.