My grandfather was Bartholomew G. Baltes. He was the son of Anton Baltes, a farmer in Roxbury, Wisconsin who came to the US around 1848 when he would have been about 11 years old. I am trying to find out who Anton's parents were and where they came from in Germany. Census records show that Anton indicated he was originaly from Prussia, but that could have meant almost anywhere in Germany in 1840. My grandfather was married to Mary C. Pings who was the daughter of Cornelius Pings. The Pings family also was from Roxbury, Wisconsin. Any help would be greatly appreciated as I am at a dead end right now.