Some websites for your research.www.linktoyourroots.hamburg.dewww.genealogienetz.de/regwww.cgsi.orgwww.csagsi.org
An old detailed map:http://lazarus.elte.hu/hun/digkonyv/topo/3felmeres.htm
A map of Bohemia:http://feefhs.org/maps/AH/ah-bohem.html
Check for them in a Bohemians to America and Germans to America. (something similar).
They could have come thru Baltimore, Boston, Philadelphia, or Galveston. Check even Ellis Island's manifests. www.ellisislandrecords.org
I do know that your ancestor will not be there but family went to family in those old days, so never know who you might find. www.surnamenavigator.org
Have you www.google.com