Gerry-My name is Michele Thomas. I am from Pittsburgh. My great-grandfather was Anton Koller. My family has limited knowledge of Anton's background. Anton died in the fourties of a suicide. Anton's homeland was Hungary. (he spoke German) I think he originated from the border of Hungary. The subject is a mystery to my family. Anton married Joe Anne Holler from Austria. To my knowledge they had four children. The only child that lived past twent-five was Helen Koller, my grandma. Helen died two years ago and never spoke of her father. I do not know the date the Koller family moved to Pittsburgh, but I know they brought no relatives. Reply back. I'll try to find some dates. Good Luck!!