http://en.wikipedia.org/wiki/Geiselbach

Try the above website. The town still exists, as my aunt has visited. One of my ancestors, Joseph Carl Weber,was married to a widow named Barbara Bienemann, who had 3 children by her first husband Peter. Joseph married Barbara in Geiselbach and immigrated to Iowa in 1880. One of Peter and Barbara's children, Amelia, died in Geiselbach and was buried with her father. The remaining 2 Bienemann children were raised as Weber in Iowa.