My great-grandfather was Anton KOLLROSS, (Sr.). I am looking for a birth certificate for him. He farmed in Luxemburg, Kewaunee County, Wisconsin (where the fairgrounds are now.) He was born about 1866. He married Mary RANK. I have been told he was born in Pilsen, but I do not know if that is USA or the one in Bohemia. My grandfather is Fabian KOLLROSS. Any information about him or any family he had (not really descendents, I have the info on his children- which I am willing to share) would be appreciated.