Nossek, Rebro, Vitopil, Repal, Elsner, Essner

I am seeking information about the above names. Karl Nossek died in Germany. His family immigrated in the early 1900s and settled in Texas. Rebro lived in Austria or Hungary. Vitopil (Vytopyl?), Repal (Rypyl?), Elsner and Essner were from Moravia. They also immigrated about the same time and settled in Texas. Any information previous to immigration would be helpful.