I don't know how much that I can contribute to help, but given the fact that I am a Pastir, I thought I'd share.
My name is Gregory Stephen Pastir, I was born in Philipsburg, PA and I'm about to be 37.My father is Stephen Michael Pastir, and grandfather was Stephen Peter Pastir.
I definately have Slovak roots.If memory serves, I believe that my grandfather was from Yugoslavia.He married Ann Evanchick.I currently have one son who is the only one to carry on the Pastir name at least as I know it.He's Tyler, and he was born in March of '06.
I currently reside in Saugerties, NY.
If I can track down some details of my late grandfathers brothers and sisters, I will be sure to pass them along.